25724090 has 32 divisors (see below), whose sum is σ = 53239680. Its totient is φ = 8766144.

The previous prime is 25724089. The next prime is 25724123. The reversal of 25724090 is 9042752.

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, 11504 + ... + 13556.

It is an arithmetic number, because the mean of its divisors is an integer number (1663740).

Almost surely, 2^25724090 is an apocalyptic number.

25724090 is an abundant number, since it is smaller than the sum of its proper divisors (27515590).

25724090 is a wasteful number, since it uses less digits than its factorization.

25724090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 25724090 is about 5071.8921518502. The cubic root of 25724090 is about 295.1979519813.

The spelling of 25724090 in words is "twenty-five million, seven hundred twenty-four thousand, ninety".