25557910413 has 32 divisors (see below), whose sum is σ = 40214986752. Its totient is φ = 14128732800.

The previous prime is 25557910397. The next prime is 25557910421. The reversal of 25557910413 is 31401975552.

It is a happy number.

It is not a de Polignac number, because 25557910413 - 2⁴ = 25557910397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25557910493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3116148 + ... + 3124338.

It is an arithmetic number, because the mean of its divisors is an integer number (1256718336).

Almost surely, 2^25557910413 is an apocalyptic number.

It is an amenable number.

25557910413 is a deficient number, since it is larger than the sum of its proper divisors (14657076339).

25557910413 is a wasteful number, since it uses less digits than its factorization.

25557910413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13025.

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 25557910413 in words is "twenty-five billion, five hundred fifty-seven million, nine hundred ten thousand, four hundred thirteen".