52759921 has 4 divisors (see below), whose sum is σ = 52774912. Its totient is φ = 52744932.

The previous prime is 52759919. The next prime is 52759939. The reversal of 52759921 is 12995725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 52759921 - 2¹ = 52759919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52759901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976 + ... + 10318.

It is an arithmetic number, because the mean of its divisors is an integer number (13193728).

Almost surely, 2^52759921 is an apocalyptic number.

It is an amenable number.

52759921 is a deficient number, since it is larger than the sum of its proper divisors (14991).

52759921 is an equidigital number, since it uses as much as digits as its factorization.

52759921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14990.

The product of its digits is 56700, while the sum is 40.

The square root of 52759921 is about 7263.6024808631. The cubic root of 52759921 is about 375.0605437062.

The spelling of 52759921 in words is "fifty-two million, seven hundred fifty-nine thousand, nine hundred twenty-one".