52222091 has 2 divisors, whose sum is σ = 52222092. Its totient is φ = 52222090.

The previous prime is 52222087. The next prime is 52222097. The reversal of 52222091 is 19022225.

52222091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52222091 - 2² = 52222087 is a prime.

It is not a weakly prime, because it can be changed into another prime (52222097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26111045 + 26111046.

It is an arithmetic number, because the mean of its divisors is an integer number (26111046).

Almost surely, 2^52222091 is an apocalyptic number.

52222091 is a deficient number, since it is larger than the sum of its proper divisors (1).

52222091 is an equidigital number, since it uses as much as digits as its factorization.

52222091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 52222091 is about 7226.4853836426. The cubic root of 52222091 is about 373.7817437422.

The spelling of 52222091 in words is "fifty-two million, two hundred twenty-two thousand, ninety-one".