52564473 has 12 divisors (see below), whose sum is σ = 81767140. Its totient is φ = 32347296.

The previous prime is 52564451. The next prime is 52564511. The reversal of 52564473 is 37446525.

52564473 is a `hidden beast` number, since 5 + 2 + 5 + 644 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28387584 + 24176889 = 5328^2 + 4917^2 .

It is not a de Polignac number, because 52564473 - 2⁸ = 52564217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52564423) 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, 224518 + ... + 224751.

Almost surely, 2^52564473 is an apocalyptic number.

It is an amenable number.

52564473 is a deficient number, since it is larger than the sum of its proper divisors (29202667).

52564473 is a wasteful number, since it uses less digits than its factorization.

52564473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449288 (or 449285 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 52564473 is about 7250.1360676887. The cubic root of 52564473 is about 374.5968360455.

The spelling of 52564473 in words is "fifty-two million, five hundred sixty-four thousand, four hundred seventy-three".