25534256 has 40 divisors (see below), whose sum is σ = 54907200. Its totient is φ = 11405120.

The previous prime is 25534253. The next prime is 25534261. The reversal of 25534256 is 65243552.

It is not an unprimeable number, because it can be changed into a prime (25534253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9155 + ... + 11613.

It is an arithmetic number, because the mean of its divisors is an integer number (1372680).

Almost surely, 2^25534256 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 25534256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27453600).

25534256 is an abundant number, since it is smaller than the sum of its proper divisors (29372944).

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

25534256 is a wasteful number, since it uses less digits than its factorization.

25534256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537 (or 2531 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 25534256 is about 5053.1431802394. The cubic root of 25534256 is about 294.4700088506.

The spelling of 25534256 in words is "twenty-five million, five hundred thirty-four thousand, two hundred fifty-six".