52756811 has 4 divisors (see below), whose sum is σ = 52821432. Its totient is φ = 52692192.

The previous prime is 52756807. The next prime is 52756817. The reversal of 52756811 is 11865725.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52756811 - 2² = 52756807 is a prime.

It is a super-2 number, since 2×52756811² = 5566562213779442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52756817) 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, 31070 + ... + 32723.

It is an arithmetic number, because the mean of its divisors is an integer number (13205358).

Almost surely, 2^52756811 is an apocalyptic number.

52756811 is a deficient number, since it is larger than the sum of its proper divisors (64621).

52756811 is an equidigital number, since it uses as much as digits as its factorization.

52756811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64620.

The product of its digits is 16800, while the sum is 35.

The square root of 52756811 is about 7263.3883966094. The cubic root of 52756811 is about 375.0531740893.

The spelling of 52756811 in words is "fifty-two million, seven hundred fifty-six thousand, eight hundred eleven".