25952290 has 96 divisors (see below), whose sum is σ = 61447680. Its totient is φ = 7682688.

The previous prime is 25952261. The next prime is 25952291. The reversal of 25952290 is 9225952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25952291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328471 + ... + 328549.

It is an arithmetic number, because the mean of its divisors is an integer number (640080).

Almost surely, 2^25952290 is an apocalyptic number.

25952290 is an abundant number, since it is smaller than the sum of its proper divisors (35495390).

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

25952290 is a wasteful number, since it uses less digits than its factorization.

25952290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 25952290 is about 5094.3390150244. The cubic root of 25952290 is about 296.0682898804.

The spelling of 25952290 in words is "twenty-five million, nine hundred fifty-two thousand, two hundred ninety".