25388013 has 16 divisors (see below), whose sum is σ = 39218816. Its totient is φ = 14307840.

The previous prime is 25388003. The next prime is 25388029. The reversal of 25388013 is 31088352.

It is a happy number.

It is not a de Polignac number, because 25388013 - 2⁶ = 25387949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25388003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6748 + ... + 9813.

It is an arithmetic number, because the mean of its divisors is an integer number (2451176).

Almost surely, 2^25388013 is an apocalyptic number.

It is an amenable number.

25388013 is a deficient number, since it is larger than the sum of its proper divisors (13830803).

25388013 is a wasteful number, since it uses less digits than its factorization.

25388013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16644.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 25388013 is about 5038.6519030391. The cubic root of 25388013 is about 293.9067569549.

The spelling of 25388013 in words is "twenty-five million, three hundred eighty-eight thousand, thirteen".