53405351525 has 48 divisors (see below), whose sum is σ = 73488629760. Its totient is φ = 38336068800.

The previous prime is 53405351513. The next prime is 53405351537. The reversal of 53405351525 is 52515350435.

It is an interprime number because it is at equal distance from previous prime (53405351513) and next prime (53405351537).

It is not a de Polignac number, because 53405351525 - 2³⁴ = 36225482341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 653492 + ... + 730658.

It is an arithmetic number, because the mean of its divisors is an integer number (1531013120).

Almost surely, 2^53405351525 is an apocalyptic number.

It is an amenable number.

53405351525 is a deficient number, since it is larger than the sum of its proper divisors (20083278235).

53405351525 is a wasteful number, since it uses less digits than its factorization.

53405351525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77274 (or 77269 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 53405351525 in words is "fifty-three billion, four hundred five million, three hundred fifty-one thousand, five hundred twenty-five".