25138356 has 24 divisors (see below), whose sum is σ = 61207104. Its totient is φ = 8015040.

The previous prime is 25138339. The next prime is 25138363. The reversal of 25138356 is 65383152.

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, 45265 + ... + 45816.

It is an arithmetic number, because the mean of its divisors is an integer number (2550296).

Almost surely, 2^25138356 is an apocalyptic number.

It is an amenable number.

25138356 is an abundant number, since it is smaller than the sum of its proper divisors (36068748).

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

25138356 is a wasteful number, since it uses less digits than its factorization.

25138356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91111 (or 91109 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 25138356 is about 5013.8165104040. The cubic root of 25138356 is about 292.9401889974.

The spelling of 25138356 in words is "twenty-five million, one hundred thirty-eight thousand, three hundred fifty-six".