25915956 has 48 divisors (see below), whose sum is σ = 69854400. Its totient is φ = 7390720.

The previous prime is 25915931. The next prime is 25915957. The reversal of 25915956 is 65951952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25915957) 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, 3531 + ... + 8018.

It is an arithmetic number, because the mean of its divisors is an integer number (1455300).

Almost surely, 2^25915956 is an apocalyptic number.

It is an amenable number.

25915956 is an abundant number, since it is smaller than the sum of its proper divisors (43938444).

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

25915956 is a wasteful number, since it uses less digits than its factorization.

25915956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11584 (or 11582 counting only the distinct ones).

The product of its digits is 121500, while the sum is 42.

The square root of 25915956 is about 5090.7716507422. The cubic root of 25915956 is about 295.9300571290.

It can be divided in two parts, 25 and 915956, that added together give a triangular number (915981 = T₁₃₅₃).

The spelling of 25915956 in words is "twenty-five million, nine hundred fifteen thousand, nine hundred fifty-six".