25057536 has 144 divisors (see below), whose sum is σ = 78489600. Its totient is φ = 6948864.

The previous prime is 25057471. The next prime is 25057553. The reversal of 25057536 is 63575052.

It is a super-2 number, since 2×25057536² = 1255760220782592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25057497 and 25057506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317145 + ... + 317223.

Almost surely, 2^25057536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25057536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39244800).

25057536 is an abundant number, since it is smaller than the sum of its proper divisors (53432064).

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

25057536 is an equidigital number, since it uses as much as digits as its factorization.

25057536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 25057536 is about 5005.7502934126. The cubic root of 25057536 is about 292.6259170045.

The spelling of 25057536 in words is "twenty-five million, fifty-seven thousand, five hundred thirty-six".