52770891 has 4 divisors (see below), whose sum is σ = 70361192. Its totient is φ = 35180592.

The previous prime is 52770877. The next prime is 52770899. The reversal of 52770891 is 19807725.

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

It is not a de Polignac number, because 52770891 - 2⁶ = 52770827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52770899) 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, 8795146 + ... + 8795151.

It is an arithmetic number, because the mean of its divisors is an integer number (17590298).

Almost surely, 2^52770891 is an apocalyptic number.

52770891 is a deficient number, since it is larger than the sum of its proper divisors (17590301).

52770891 is a wasteful number, since it uses less digits than its factorization.

52770891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17590300.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 52770891 is about 7264.3575765514. The cubic root of 52770891 is about 375.0865364734.

The spelling of 52770891 in words is "fifty-two million, seven hundred seventy thousand, eight hundred ninety-one".