25493620 has 24 divisors (see below), whose sum is σ = 53712288. Its totient is φ = 10164000.

The previous prime is 25493609. The next prime is 25493641. The reversal of 25493620 is 2639452.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4695 + ... + 8545.

It is an arithmetic number, because the mean of its divisors is an integer number (2238012).

Almost surely, 2^25493620 is an apocalyptic number.

25493620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25493620 is an abundant number, since it is smaller than the sum of its proper divisors (28218668).

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

25493620 is a wasteful number, since it uses less digits than its factorization.

25493620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4191 (or 4189 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 25493620 is about 5049.1207155306. The cubic root of 25493620 is about 294.3137163700.

The spelling of 25493620 in words is "twenty-five million, four hundred ninety-three thousand, six hundred twenty".