25131038 has 4 divisors (see below), whose sum is σ = 37696560. Its totient is φ = 12565518.

The previous prime is 25131037. The next prime is 25131047. The reversal of 25131038 is 83013152.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25131031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6282758 + ... + 6282761.

It is an arithmetic number, because the mean of its divisors is an integer number (9424140).

Almost surely, 2^25131038 is an apocalyptic number.

25131038 is a deficient number, since it is larger than the sum of its proper divisors (12565522).

25131038 is a wasteful number, since it uses less digits than its factorization.

25131038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12565521.

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

The square root of 25131038 is about 5013.0866738966. The cubic root of 25131038 is about 292.9117604033.

The spelling of 25131038 in words is "twenty-five million, one hundred thirty-one thousand, thirty-eight".