25871972 has 24 divisors (see below), whose sum is σ = 52624320. Its totient is φ = 10899360.

The previous prime is 25871971. The next prime is 25871981. The reversal of 25871972 is 27917852.

It is not an unprimeable number, because it can be changed into a prime (25871971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6179 + ... + 9482.

It is an arithmetic number, because the mean of its divisors is an integer number (2192680).

Almost surely, 2^25871972 is an apocalyptic number.

It is an amenable number.

25871972 is an abundant number, since it is smaller than the sum of its proper divisors (26752348).

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

25871972 is a wasteful number, since it uses less digits than its factorization.

25871972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15731 (or 15729 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 25871972 is about 5086.4498424736. The cubic root of 25871972 is about 295.7625469642.

The spelling of 25871972 in words is "twenty-five million, eight hundred seventy-one thousand, nine hundred seventy-two".