52613198857 has 2 divisors, whose sum is σ = 52613198858. Its totient is φ = 52613198856.

The previous prime is 52613198849. The next prime is 52613198863. The reversal of 52613198857 is 75889131625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50593954761 + 2019244096 = 224931^2 + 44936^2 .

It is a cyclic number.

It is not a de Polignac number, because 52613198857 - 2³ = 52613198849 is a prime.

It is a super-2 number, since 2×52613198857² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52613198798 and 52613198807.

It is not a weakly prime, because it can be changed into another prime (52613198837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26306599428 + 26306599429.

It is an arithmetic number, because the mean of its divisors is an integer number (26306599429).

Almost surely, 2^52613198857 is an apocalyptic number.

It is an amenable number.

52613198857 is a deficient number, since it is larger than the sum of its proper divisors (1).

52613198857 is an equidigital number, since it uses as much as digits as its factorization.

52613198857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 55.

The spelling of 52613198857 in words is "fifty-two billion, six hundred thirteen million, one hundred ninety-eight thousand, eight hundred fifty-seven".