25915380 has 48 divisors (see below), whose sum is σ = 74909184. Its totient is φ = 6687360.

The previous prime is 25915363. The next prime is 25915381. The reversal of 25915380 is 8351952.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25915381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5107 + ... + 8826.

It is an arithmetic number, because the mean of its divisors is an integer number (1560608).

Almost surely, 2^25915380 is an apocalyptic number.

25915380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25915380 is an abundant number, since it is smaller than the sum of its proper divisors (48993804).

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

25915380 is a wasteful number, since it uses less digits than its factorization.

25915380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13976 (or 13974 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 25915380 is about 5090.7150774719. The cubic root of 25915380 is about 295.9278646962.

The spelling of 25915380 in words is "twenty-five million, nine hundred fifteen thousand, three hundred eighty".