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5561125 = 53172617
BaseRepresentation
bin10101001101101100100101
3101110112102121
4111031230211
52410424000
6315105541
765161123
oct25155445
911415377
105561125
113159179
121a422b1
1311c930b
14a4a913
1574cb1a
hex54db25

5561125 has 16 divisors (see below), whose sum is σ = 7351344. Its totient is φ = 4185600.

The previous prime is 5561123. The next prime is 5561141. The reversal of 5561125 is 5211655.

It can be written as a sum of positive squares in 8 ways, for example, as 113569 + 5447556 = 337^2 + 2334^2 .

It is not a de Polignac number, because 5561125 - 21 = 5561123 is a prime.

It is a super-2 number, since 2×55611252 = 61852222531250, which contains 22 as substring.

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 5561125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817 + ... + 3433.

It is an arithmetic number, because the mean of its divisors is an integer number (459459).

Almost surely, 25561125 is an apocalyptic number.

It is an amenable number.

5561125 is a deficient number, since it is larger than the sum of its proper divisors (1790219).

5561125 is a wasteful number, since it uses less digits than its factorization.

5561125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649 (or 2639 counting only the distinct ones).

The product of its digits is 1500, while the sum is 25.

The square root of 5561125 is about 2358.2037655809. The cubic root of 5561125 is about 177.1689259427.

It can be divided in two parts, 556 and 1125, that added together give a square (1681 = 412).

The spelling of 5561125 in words is "five million, five hundred sixty-one thousand, one hundred twenty-five".

Divisors: 1 5 17 25 85 125 425 2125 2617 13085 44489 65425 222445 327125 1112225 5561125