25371139 has 8 divisors (see below), whose sum is σ = 26595360. Its totient is φ = 24157056.

The previous prime is 25371131. The next prime is 25371187. The reversal of 25371139 is 93117352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25371139 - 2³ = 25371131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25371139.

It is not an unprimeable number, because it can be changed into a prime (25371131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2859 + ... + 7675.

It is an arithmetic number, because the mean of its divisors is an integer number (3324420).

Almost surely, 2^25371139 is an apocalyptic number.

25371139 is a deficient number, since it is larger than the sum of its proper divisors (1224221).

25371139 is a wasteful number, since it uses less digits than its factorization.

25371139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069.

The product of its digits is 5670, while the sum is 31.

The square root of 25371139 is about 5036.9771688980. The cubic root of 25371139 is about 293.8416280328.

The spelling of 25371139 in words is "twenty-five million, three hundred seventy-one thousand, one hundred thirty-nine".