25942656 has 32 divisors (see below), whose sum is σ = 68911200. Its totient is φ = 8647424.

The previous prime is 25942639. The next prime is 25942673. The reversal of 25942656 is 65624952.

It is an interprime number because it is at equal distance from previous prime (25942639) and next prime (25942673).

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 33396 + ... + 34163.

It is an arithmetic number, because the mean of its divisors is an integer number (2153475).

Almost surely, 2^25942656 is an apocalyptic number.

It is an amenable number.

25942656 is an abundant number, since it is smaller than the sum of its proper divisors (42968544).

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

25942656 is an equidigital number, since it uses as much as digits as its factorization.

25942656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67576 (or 67564 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 25942656 is about 5093.3933678835. The cubic root of 25942656 is about 296.0316498906.

The spelling of 25942656 in words is "twenty-five million, nine hundred forty-two thousand, six hundred fifty-six".