25442672 has 40 divisors (see below), whose sum is σ = 52377600. Its totient is φ = 11938752.

The previous prime is 25442639. The next prime is 25442687. The reversal of 25442672 is 27624452.

It is a congruent number.

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, 38279 + ... + 38937.

It is an arithmetic number, because the mean of its divisors is an integer number (1309440).

Almost surely, 2^25442672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25442672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26188800).

25442672 is an abundant number, since it is smaller than the sum of its proper divisors (26934928).

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

25442672 is a wasteful number, since it uses less digits than its factorization.

25442672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 807 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 25442672 is about 5044.0729574422. The cubic root of 25442672 is about 294.1175274792.

The spelling of 25442672 in words is "twenty-five million, four hundred forty-two thousand, six hundred seventy-two".