25672556 has 24 divisors (see below), whose sum is σ = 55295520. Its totient is φ = 10156032.

The previous prime is 25672547. The next prime is 25672571. The reversal of 25672556 is 65527652.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34901 + ... + 35628.

It is an arithmetic number, because the mean of its divisors is an integer number (2303980).

Almost surely, 2^25672556 is an apocalyptic number.

25672556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25672556 is an abundant number, since it is smaller than the sum of its proper divisors (29622964).

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

25672556 is a wasteful number, since it uses less digits than its factorization.

25672556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70553 (or 70551 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 25672556 is about 5066.8092523796. The cubic root of 25672556 is about 295.0006932857. Note that the first 3 decimals are identical.

The spelling of 25672556 in words is "twenty-five million, six hundred seventy-two thousand, five hundred fifty-six".