525947749525 has 24 divisors (see below), whose sum is σ = 712570580064. Its totient is φ = 381912446400.

The previous prime is 525947749513. The next prime is 525947749553.

525947749525 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 525947749525 - 2¹¹ = 525947747477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1310374 + ... + 1664023.

It is an arithmetic number, because the mean of its divisors is an integer number (29690440836).

Almost surely, 2^525947749525 is an apocalyptic number.

525947749525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525947749525 is a deficient number, since it is larger than the sum of its proper divisors (186622830539).

525947749525 is a wasteful number, since it uses less digits than its factorization.

525947749525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975061 (or 2975056 counting only the distinct ones).

The product of its digits is 158760000, while the sum is 64.

The spelling of 525947749525 in words is "five hundred twenty-five billion, nine hundred forty-seven million, seven hundred forty-nine thousand, five hundred twenty-five".