52972533 has 24 divisors (see below), whose sum is σ = 79311960. Its totient is φ = 34045440.

The previous prime is 52972529. The next prime is 52972537. The reversal of 52972533 is 33527925.

52972533 is a `hidden beast` number, since 52 + 9 + 72 + 533 = 666.

It is an interprime number because it is at equal distance from previous prime (52972529) and next prime (52972537).

It can be written as a sum of positive squares in 4 ways, for example, as 3249 + 52969284 = 57^2 + 7278^2 .

It is not a de Polignac number, because 52972533 - 2² = 52972529 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52972537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32035 + ... + 33647.

It is an arithmetic number, because the mean of its divisors is an integer number (3304665).

Almost surely, 2^52972533 is an apocalyptic number.

It is an amenable number.

52972533 is a deficient number, since it is larger than the sum of its proper divisors (26339427).

52972533 is a wasteful number, since it uses less digits than its factorization.

52972533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749 (or 1746 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 52972533 is about 7278.2232035023. The cubic root of 52972533 is about 375.5636749636.

The spelling of 52972533 in words is "fifty-two million, nine hundred seventy-two thousand, five hundred thirty-three".