52220591 has 2 divisors, whose sum is σ = 52220592. Its totient is φ = 52220590.

The previous prime is 52220587. The next prime is 52220621. The reversal of 52220591 is 19502225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52220591 - 2² = 52220587 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52220591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52220551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26110295 + 26110296.

It is an arithmetic number, because the mean of its divisors is an integer number (26110296).

Almost surely, 2^52220591 is an apocalyptic number.

52220591 is a deficient number, since it is larger than the sum of its proper divisors (1).

52220591 is an equidigital number, since it uses as much as digits as its factorization.

52220591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 52220591 is about 7226.3815980060. The cubic root of 52220591 is about 373.7781649375.

The spelling of 52220591 in words is "fifty-two million, two hundred twenty thousand, five hundred ninety-one".