52199951697 has 12 divisors (see below), whose sum is σ = 76822571124. Its totient is φ = 34143364320.

The previous prime is 52199951653. The next prime is 52199951707. The reversal of 52199951697 is 79615999125.

52199951697 is a `hidden beast` number, since 5 + 21 + 9 + 9 + 9 + 516 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46899966096 + 5299985601 = 216564^2 + 72801^2 .

It is not a de Polignac number, because 52199951697 - 2⁷ = 52199951569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52199951197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54716454 + ... + 54717407.

It is an arithmetic number, because the mean of its divisors is an integer number (6401880927).

Almost surely, 2^52199951697 is an apocalyptic number.

It is an amenable number.

52199951697 is a deficient number, since it is larger than the sum of its proper divisors (24622619427).

52199951697 is a wasteful number, since it uses less digits than its factorization.

52199951697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109433920 (or 109433917 counting only the distinct ones).

The product of its digits is 13778100, while the sum is 63.

The spelling of 52199951697 in words is "fifty-two billion, one hundred ninety-nine million, nine hundred fifty-one thousand, six hundred ninety-seven".