25090131309 has 16 divisors (see below), whose sum is σ = 36378698688. Its totient is φ = 15317344512.

The previous prime is 25090131299. The next prime is 25090131323. The reversal of 25090131309 is 90313109052.

It is not a de Polignac number, because 25090131309 - 2⁴ = 25090131293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25090131309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25090131379) 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, 6646267 + ... + 6650040.

It is an arithmetic number, because the mean of its divisors is an integer number (2273668668).

Almost surely, 2^25090131309 is an apocalyptic number.

It is an amenable number.

25090131309 is a deficient number, since it is larger than the sum of its proper divisors (11288567379).

25090131309 is a wasteful number, since it uses less digits than its factorization.

25090131309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13296364.

The product of its (nonzero) digits is 7290, while the sum is 33.

The spelling of 25090131309 in words is "twenty-five billion, ninety million, one hundred thirty-one thousand, three hundred nine".