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44422225 = 52312432
BaseRepresentation
bin1010100101110…
…1010001010001
310002120212211121
42221131101101
542333002400
64224042241
71046403601
oct251352121
9102525747
1044422225
1123091091
1212a63381
139284653
145c84c01
153d7721a
hex2a5d451

44422225 has 27 divisors (see below), whose sum is σ = 58272219. Its totient is φ = 33591600.

The previous prime is 44422219. The next prime is 44422249. The reversal of 44422225 is 52222444.

The square root of 44422225 is 6665.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15992001 + 28430224 = 3999^2 + 5332^2 .

It is not a de Polignac number, because 44422225 - 211 = 44420177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 44422225.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1033054 + ... + 1033096.

Almost surely, 244422225 is an apocalyptic number.

44422225 is the 6665-th square number.

44422225 is the 3333-rd centered octagonal number.

It is an amenable number.

44422225 is a deficient number, since it is larger than the sum of its proper divisors (13849994).

44422225 is an equidigital number, since it uses as much as digits as its factorization.

44422225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 79 counting only the distinct ones).

The product of its digits is 5120, while the sum is 25.

The cubic root of 44422225 is about 354.1604840136.

Multiplying 44422225 by its sum of digits (25), we get a square (1110555625 = 333252).

44422225 divided by its sum of digits (25) gives a square (1776889 = 13332).

Adding to 44422225 its reverse (52222444), we get a palindrome (96644669).

The spelling of 44422225 in words is "forty-four million, four hundred twenty-two thousand, two hundred twenty-five".

Divisors: 1 5 25 31 43 155 215 775 961 1075 1333 1849 4805 6665 9245 24025 33325 41323 46225 57319 206615 286595 1033075 1432975 1776889 8884445 44422225