52564423 has 2 divisors, whose sum is σ = 52564424. Its totient is φ = 52564422.

The previous prime is 52564399. The next prime is 52564427. The reversal of 52564423 is 32446525.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52564423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52564427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26282211 + 26282212.

It is an arithmetic number, because the mean of its divisors is an integer number (26282212).

Almost surely, 2^52564423 is an apocalyptic number.

52564423 is a deficient number, since it is larger than the sum of its proper divisors (1).

52564423 is an equidigital number, since it uses as much as digits as its factorization.

52564423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 31.

The square root of 52564423 is about 7250.1326194767. The cubic root of 52564423 is about 374.5967172717.

The spelling of 52564423 in words is "fifty-two million, five hundred sixty-four thousand, four hundred twenty-three".