25113139 has 2 divisors, whose sum is σ = 25113140. Its totient is φ = 25113138.

The previous prime is 25113133. The next prime is 25113211. The reversal of 25113139 is 93131152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25113139 - 2⁹ = 25112627 is a prime.

It is equal to p_1572622 and since 25113139 and 1572622 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25113133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556569 + 12556570.

It is an arithmetic number, because the mean of its divisors is an integer number (12556570).

Almost surely, 2^25113139 is an apocalyptic number.

25113139 is a deficient number, since it is larger than the sum of its proper divisors (1).

25113139 is an equidigital number, since it uses as much as digits as its factorization.

25113139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 25.

The square root of 25113139 is about 5011.3011284496. The cubic root of 25113139 is about 292.8422040140.

It can be divided in two parts, 25113 and 139, that added together give a palindrome (25252).

The spelling of 25113139 in words is "twenty-five million, one hundred thirteen thousand, one hundred thirty-nine".