25574536 has 16 divisors (see below), whose sum is σ = 51641100. Its totient is φ = 11803584.

The previous prime is 25574467. The next prime is 25574539. The reversal of 25574536 is 63547552.

It can be written as a sum of positive squares in 2 ways, for example, as 22982436 + 2592100 = 4794^2 + 1610^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25574495 and 25574504.

It is not an unprimeable number, because it can be changed into a prime (25574539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122851 + ... + 123058.

Almost surely, 2^25574536 is an apocalyptic number.

25574536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25574536 is an abundant number, since it is smaller than the sum of its proper divisors (26066564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25574536 is a wasteful number, since it uses less digits than its factorization.

25574536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245928 (or 245924 counting only the distinct ones).

The product of its digits is 126000, while the sum is 37.

The square root of 25574536 is about 5057.1272477564. The cubic root of 25574536 is about 294.6247685379.

The spelling of 25574536 in words is "twenty-five million, five hundred seventy-four thousand, five hundred thirty-six".