525457757913 has 16 divisors (see below), whose sum is σ = 770136567552. Its totient is φ = 316028258000.

The previous prime is 525457757857. The next prime is 525457757917. The reversal of 525457757913 is 319757754525.

It is a cyclic number.

It is not a de Polignac number, because 525457757913 - 2²¹ = 525455660761 is a prime.

It is a super-2 number, since 2×525457757913² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (525457757917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60770343 + ... + 60778988.

It is an arithmetic number, because the mean of its divisors is an integer number (48133535472).

Almost surely, 2^525457757913 is an apocalyptic number.

It is an amenable number.

525457757913 is a deficient number, since it is larger than the sum of its proper divisors (244678809639).

525457757913 is a wasteful number, since it uses less digits than its factorization.

525457757913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121549476.

The product of its digits is 46305000, while the sum is 60.

The spelling of 525457757913 in words is "five hundred twenty-five billion, four hundred fifty-seven million, seven hundred fifty-seven thousand, nine hundred thirteen".