25981952 has 22 divisors (see below), whose sum is σ = 51940578. Its totient is φ = 12990464.

The previous prime is 25981931. The next prime is 25981961. The reversal of 25981952 is 25918952.

It can be written as a sum of positive squares in only one way, i.e., 14258176 + 11723776 = 3776^2 + 3424^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11663 + ... + 13710.

Almost surely, 2^25981952 is an apocalyptic number.

It is an amenable number.

25981952 is a deficient number, since it is larger than the sum of its proper divisors (25958626).

25981952 is an equidigital number, since it uses as much as digits as its factorization.

25981952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25393 (or 25375 counting only the distinct ones).

The product of its digits is 64800, while the sum is 41.

The square root of 25981952 is about 5097.2494543626. The cubic root of 25981952 is about 296.1810433724.

The spelling of 25981952 in words is "twenty-five million, nine hundred eighty-one thousand, nine hundred fifty-two".