125501555313 has 24 divisors (see below), whose sum is σ = 181721494656. Its totient is φ = 83464084800.

The previous prime is 125501555297. The next prime is 125501555317. The reversal of 125501555313 is 313555105521.

125501555313 is a `hidden beast` number, since 1 + 2 + 550 + 1 + 55 + 53 + 1 + 3 = 666.

It is not a de Polignac number, because 125501555313 - 2⁴ = 125501555297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125501555317) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 19242493 + ... + 19249013.

It is an arithmetic number, because the mean of its divisors is an integer number (7571728944).

Almost surely, 2^125501555313 is an apocalyptic number.

It is an amenable number.

125501555313 is a deficient number, since it is larger than the sum of its proper divisors (56219939343).

125501555313 is a wasteful number, since it uses less digits than its factorization.

125501555313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11405 (or 11402 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

The spelling of 125501555313 in words is "one hundred twenty-five billion, five hundred one million, five hundred fifty-five thousand, three hundred thirteen".