52622891 has 4 divisors (see below), whose sum is σ = 52696800. Its totient is φ = 52548984.

The previous prime is 52622879. The next prime is 52622893. The reversal of 52622891 is 19822625.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52622891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52622893) 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, 35876 + ... + 37313.

It is an arithmetic number, because the mean of its divisors is an integer number (13174200).

Almost surely, 2^52622891 is an apocalyptic number.

52622891 is a deficient number, since it is larger than the sum of its proper divisors (73909).

52622891 is an equidigital number, since it uses as much as digits as its factorization.

52622891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73908.

The product of its digits is 17280, while the sum is 35.

The square root of 52622891 is about 7254.1637009376. The cubic root of 52622891 is about 374.7355551906.

The spelling of 52622891 in words is "fifty-two million, six hundred twenty-two thousand, eight hundred ninety-one".