25440484 has 12 divisors (see below), whose sum is σ = 46456704. Its totient is φ = 12167144.

The previous prime is 25440479. The next prime is 25440521. The reversal of 25440484 is 48404452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138172 + ... + 138355.

It is an arithmetic number, because the mean of its divisors is an integer number (3871392).

Almost surely, 2^25440484 is an apocalyptic number.

It is an amenable number.

25440484 is a deficient number, since it is larger than the sum of its proper divisors (21016220).

25440484 is a wasteful number, since it uses less digits than its factorization.

25440484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276554 (or 276552 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

The square root of 25440484 is about 5043.8560645601. The cubic root of 25440484 is about 294.1090961373.

The spelling of 25440484 in words is "twenty-five million, four hundred forty thousand, four hundred eighty-four".