25457572 has 48 divisors (see below), whose sum is σ = 53186560. Its totient is φ = 10432800.

The previous prime is 25457561. The next prime is 25457581. The reversal of 25457572 is 27575452.

Its product of digits (98000) is a multiple of the sum of its prime factors (392).

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 15 ways as a sum of consecutive naturals, for example, 120547 + ... + 120757.

Almost surely, 2^25457572 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 25457572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26593280).

25457572 is an abundant number, since it is smaller than the sum of its proper divisors (27728988).

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

25457572 is a wasteful number, since it uses less digits than its factorization.

25457572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 390 counting only the distinct ones).

The product of its digits is 98000, while the sum is 37.

The square root of 25457572 is about 5045.5497222800. The cubic root of 25457572 is about 294.1749309882.

The spelling of 25457572 in words is "twenty-five million, four hundred fifty-seven thousand, five hundred seventy-two".