25440048 has 40 divisors (see below), whose sum is σ = 73023600. Its totient is φ = 8479872.

The previous prime is 25440043. The next prime is 25440061. The reversal of 25440048 is 84004452.

25440048 is a `hidden beast` number, since 254 + 400 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25440043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29013 + ... + 29876.

It is an arithmetic number, because the mean of its divisors is an integer number (1825590).

Almost surely, 2^25440048 is an apocalyptic number.

It is an amenable number.

25440048 is an abundant number, since it is smaller than the sum of its proper divisors (47583552).

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

25440048 is a wasteful number, since it uses less digits than its factorization.

25440048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58906 (or 58894 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 25440048 is about 5043.8128434747. The cubic root of 25440048 is about 294.1074159767.

The spelling of 25440048 in words is "twenty-five million, four hundred forty thousand, forty-eight".