25393960 has 32 divisors (see below), whose sum is σ = 58982400. Its totient is φ = 9829440.

The previous prime is 25393939. The next prime is 25393967. The reversal of 25393960 is 6939352.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25393967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9000 + ... + 11479.

It is an arithmetic number, because the mean of its divisors is an integer number (1843200).

Almost surely, 2^25393960 is an apocalyptic number.

25393960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25393960 is an abundant number, since it is smaller than the sum of its proper divisors (33588440).

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

25393960 is a wasteful number, since it uses less digits than its factorization.

25393960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20521 (or 20517 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 25393960 is about 5039.2420064926. The cubic root of 25393960 is about 293.9297038344.

The spelling of 25393960 in words is "twenty-five million, three hundred ninety-three thousand, nine hundred sixty".