52147564 has 18 divisors (see below), whose sum is σ = 106157940. Its totient is φ = 22348872.

The previous prime is 52147499. The next prime is 52147567. The reversal of 52147564 is 46574125.

It is a super-2 number, since 2×52147564² = 5438736862268192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52147567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132834 + ... + 133225.

Almost surely, 2^52147564 is an apocalyptic number.

It is an amenable number.

52147564 is an abundant number, since it is smaller than the sum of its proper divisors (54010376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52147564 is a wasteful number, since it uses less digits than its factorization.

52147564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266077 (or 266068 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 52147564 is about 7221.3270248618. The cubic root of 52147564 is about 373.6038490770.

The spelling of 52147564 in words is "fifty-two million, one hundred forty-seven thousand, five hundred sixty-four".