25444925 has 24 divisors (see below), whose sum is σ = 34959072. Its totient is φ = 18216000.

The previous prime is 25444901. The next prime is 25444957. The reversal of 25444925 is 52944452.

It is not a de Polignac number, because 25444925 - 2⁸ = 25444669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17735 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (1456628).

Almost surely, 2^25444925 is an apocalyptic number.

25444925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25444925 is a deficient number, since it is larger than the sum of its proper divisors (9514147).

25444925 is a wasteful number, since it uses less digits than its factorization.

25444925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1464 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 25444925 is about 5044.2962839231. The cubic root of 25444925 is about 294.1262087900.

The spelling of 25444925 in words is "twenty-five million, four hundred forty-four thousand, nine hundred twenty-five".