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2455225 = 521753109
BaseRepresentation
bin1001010111011010111001
311121201221021
421113122321
51112031400
6124342441
726604043
oct11273271
94551837
102455225
111427713
129a4a21
1367c6c6
1447ca93
1533771a
hex2576b9

2455225 has 24 divisors (see below), whose sum is σ = 3314520. Its totient is φ = 1797120.

The previous prime is 2455217. The next prime is 2455253. The reversal of 2455225 is 5225542.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 71289 + 2383936 = 267^2 + 1544^2 .

It is not a de Polignac number, because 2455225 - 23 = 2455217 is a prime.

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

2455225 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2455225.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22471 + ... + 22579.

It is an arithmetic number, because the mean of its divisors is an integer number (138105).

22455225 is an apocalyptic number.

2455225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2455225 is a deficient number, since it is larger than the sum of its proper divisors (859295).

2455225 is a wasteful number, since it uses less digits than its factorization.

2455225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its digits is 4000, while the sum is 25.

The square root of 2455225 is about 1566.9157603394. The cubic root of 2455225 is about 134.9057412442.

The spelling of 2455225 in words is "two million, four hundred fifty-five thousand, two hundred twenty-five".

Divisors: 1 5 17 25 53 85 109 265 425 545 901 1325 1853 2725 4505 5777 9265 22525 28885 46325 98209 144425 491045 2455225