25204290 has 32 divisors (see below), whose sum is σ = 61347456. Its totient is φ = 6625920.

The previous prime is 25204259. The next prime is 25204337. The reversal of 25204290 is 9240252.

It is a self number, because there is not a number n which added to its sum of digits gives 25204290.

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, 3787 + ... + 8046.

It is an arithmetic number, because the mean of its divisors is an integer number (1917108).

Almost surely, 2^25204290 is an apocalyptic number.

25204290 is an abundant number, since it is smaller than the sum of its proper divisors (36143166).

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

25204290 is a wasteful number, since it uses less digits than its factorization.

25204290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11914.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 25204290 is about 5020.3874352484. The cubic root of 25204290 is about 293.1960776016.

The spelling of 25204290 in words is "twenty-five million, two hundred four thousand, two hundred ninety".