25139007 has 6 divisors (see below), whose sum is σ = 36311912. Its totient is φ = 16759332.

The previous prime is 25138999. The next prime is 25139017. The reversal of 25139007 is 70093152.

It is not a de Polignac number, because 25139007 - 2³ = 25138999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25139017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1396603 + ... + 1396620.

Almost surely, 2^25139007 is an apocalyptic number.

25139007 is a deficient number, since it is larger than the sum of its proper divisors (11172905).

25139007 is a wasteful number, since it uses less digits than its factorization.

25139007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793229 (or 2793226 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 25139007 is about 5013.8814305885. The cubic root of 25139007 is about 292.9427177019.

The spelling of 25139007 in words is "twenty-five million, one hundred thirty-nine thousand, seven".