52503561 has 12 divisors (see below), whose sum is σ = 82733040. Its totient is φ = 31820280.

The previous prime is 52503557. The next prime is 52503587. The reversal of 52503561 is 16530525.

52503561 is a `hidden beast` number, since 52 + 50 + 3 + 561 = 666.

It is not a de Polignac number, because 52503561 - 2² = 52503557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52503541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265071 + ... + 265268.

It is an arithmetic number, because the mean of its divisors is an integer number (6894420).

Almost surely, 2^52503561 is an apocalyptic number.

It is an amenable number.

52503561 is a deficient number, since it is larger than the sum of its proper divisors (30229479).

52503561 is a wasteful number, since it uses less digits than its factorization.

52503561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530356 (or 530353 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 52503561 is about 7245.9341012736. The cubic root of 52503561 is about 374.4520851614.

The spelling of 52503561 in words is "fifty-two million, five hundred three thousand, five hundred sixty-one".