25139091315 has 16 divisors (see below), whose sum is σ = 43316588448. Its totient is φ = 12376167936.

The previous prime is 25139091277. The next prime is 25139091323. The reversal of 25139091315 is 51319093152.

It is not a de Polignac number, because 25139091315 - 2⁶ = 25139091251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 64459014 + ... + 64459403.

It is an arithmetic number, because the mean of its divisors is an integer number (2707286778).

Almost surely, 2^25139091315 is an apocalyptic number.

25139091315 is a deficient number, since it is larger than the sum of its proper divisors (18177497133).

25139091315 is a wasteful number, since it uses less digits than its factorization.

25139091315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128918438.

The product of its (nonzero) digits is 36450, while the sum is 39.

The spelling of 25139091315 in words is "twenty-five billion, one hundred thirty-nine million, ninety-one thousand, three hundred fifteen".