25918572 has 12 divisors (see below), whose sum is σ = 60476696. Its totient is φ = 8639520.

The previous prime is 25918561. The next prime is 25918579. The reversal of 25918572 is 27581952.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25918572.

It is not an unprimeable number, because it can be changed into a prime (25918579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079929 + ... + 1079952.

Almost surely, 2^25918572 is an apocalyptic number.

It is an amenable number.

25918572 is an abundant number, since it is smaller than the sum of its proper divisors (34558124).

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

25918572 is a wasteful number, since it uses less digits than its factorization.

25918572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159888 (or 2159886 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 25918572 is about 5091.0285797666. The cubic root of 25918572 is about 295.9400140192.

The spelling of 25918572 in words is "twenty-five million, nine hundred eighteen thousand, five hundred seventy-two".