25056390 has 16 divisors (see below), whose sum is σ = 60135408. Its totient is φ = 6681696.

The previous prime is 25056349. The next prime is 25056391. The reversal of 25056390 is 9365052.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 835213 = 25056390 / (2 + 5 + 0 + 5 + 6 + 3 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25056391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417577 + ... + 417636.

It is an arithmetic number, because the mean of its divisors is an integer number (3758463).

Almost surely, 2^25056390 is an apocalyptic number.

25056390 is an abundant number, since it is smaller than the sum of its proper divisors (35079018).

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

25056390 is a wasteful number, since it uses less digits than its factorization.

25056390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835223.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 25056390 is about 5005.6358237491. The cubic root of 25056390 is about 292.6214558794.

The spelling of 25056390 in words is "twenty-five million, fifty-six thousand, three hundred ninety".