52199951569 has 2 divisors, whose sum is σ = 52199951570. Its totient is φ = 52199951568.

The previous prime is 52199951563. The next prime is 52199951581. The reversal of 52199951569 is 96515999125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34712533969 + 17487417600 = 186313^2 + 132240^2 .

It is a cyclic number.

It is not a de Polignac number, because 52199951569 - 2³ = 52199951561 is a prime.

It is a super-2 number, since 2×52199951569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52199951561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26099975784 + 26099975785.

It is an arithmetic number, because the mean of its divisors is an integer number (26099975785).

Almost surely, 2^52199951569 is an apocalyptic number.

It is an amenable number.

52199951569 is a deficient number, since it is larger than the sum of its proper divisors (1).

52199951569 is an equidigital number, since it uses as much as digits as its factorization.

52199951569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9841500, while the sum is 61.

The spelling of 52199951569 in words is "fifty-two billion, one hundred ninety-nine million, nine hundred fifty-one thousand, five hundred sixty-nine".