25038131 has 4 divisors (see below), whose sum is σ = 25090032. Its totient is φ = 24986232.

The previous prime is 25038119. The next prime is 25038137. The reversal of 25038131 is 13183052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25038131 - 2²² = 20843827 is a prime.

It is a super-2 number, since 2×25038131² = 1253816007946322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25038097 and 25038106.

It is not an unprimeable number, because it can be changed into a prime (25038137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25220 + ... + 26193.

It is an arithmetic number, because the mean of its divisors is an integer number (6272508).

Almost surely, 2^25038131 is an apocalyptic number.

25038131 is a deficient number, since it is larger than the sum of its proper divisors (51901).

25038131 is an equidigital number, since it uses as much as digits as its factorization.

25038131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51900.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 25038131 is about 5003.8116471346. The cubic root of 25038131 is about 292.5503592646.

The spelling of 25038131 in words is "twenty-five million, thirty-eight thousand, one hundred thirty-one".