52571999437 has 2 divisors, whose sum is σ = 52571999438. Its totient is φ = 52571999436.

The previous prime is 52571999411. The next prime is 52571999453. The reversal of 52571999437 is 73499917525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52480395396 + 91604041 = 229086^2 + 9571^2 .

It is a cyclic number.

It is not a de Polignac number, because 52571999437 - 2²⁷ = 52437781709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52571999497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26285999718 + 26285999719.

It is an arithmetic number, because the mean of its divisors is an integer number (26285999719).

Almost surely, 2^52571999437 is an apocalyptic number.

It is an amenable number.

52571999437 is a deficient number, since it is larger than the sum of its proper divisors (1).

52571999437 is an equidigital number, since it uses as much as digits as its factorization.

52571999437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21432600, while the sum is 61.

The spelling of 52571999437 in words is "fifty-two billion, five hundred seventy-one million, nine hundred ninety-nine thousand, four hundred thirty-seven".