25056240 has 80 divisors (see below), whose sum is σ = 84744576. Its totient is φ = 6073600.

The previous prime is 25056209. The next prime is 25056253. The reversal of 25056240 is 4265052.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 25056240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2106 + ... + 7385.

Almost surely, 2^25056240 is an apocalyptic number.

25056240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25056240 is an abundant number, since it is smaller than the sum of its proper divisors (59688336).

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

25056240 is a wasteful number, since it uses less digits than its factorization.

25056240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9518 (or 9512 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25056240 is about 5005.6208406151. The cubic root of 25056240 is about 292.6208719524.

The spelling of 25056240 in words is "twenty-five million, fifty-six thousand, two hundred forty".