52222979 has 2 divisors, whose sum is σ = 52222980. Its totient is φ = 52222978.

The previous prime is 52222921. The next prime is 52222981. The reversal of 52222979 is 97922225.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52222979 is a prime.

Together with 52222981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52222909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26111489 + 26111490.

It is an arithmetic number, because the mean of its divisors is an integer number (26111490).

Almost surely, 2^52222979 is an apocalyptic number.

52222979 is a deficient number, since it is larger than the sum of its proper divisors (1).

52222979 is an equidigital number, since it uses as much as digits as its factorization.

52222979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 52222979 is about 7226.5468240371. The cubic root of 52222979 is about 373.7838623622.

The spelling of 52222979 in words is "fifty-two million, two hundred twenty-two thousand, nine hundred seventy-nine".