25726290 has 32 divisors (see below), whose sum is σ = 62133696. Its totient is φ = 6816960.

The previous prime is 25726273. The next prime is 25726303. The reversal of 25726290 is 9262752.

It is a happy 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, 2260 + ... + 7520.

It is an arithmetic number, because the mean of its divisors is an integer number (1941678).

Almost surely, 2^25726290 is an apocalyptic number.

25726290 is an abundant number, since it is smaller than the sum of its proper divisors (36407406).

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

25726290 is a wasteful number, since it uses less digits than its factorization.

25726290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 25726290 is about 5072.1090287966. The cubic root of 25726290 is about 295.2063671411.

The spelling of 25726290 in words is "twenty-five million, seven hundred twenty-six thousand, two hundred ninety".