52160621769 has 9 divisors (see below), whose sum is σ = 75344110023. Its totient is φ = 34773291072.

The previous prime is 52160621719. The next prime is 52160621791. The reversal of 52160621769 is 96712606125.

The square root of 52160621769 is 228387.

It is a perfect power (a square), and thus also a powerful number.

52160621769 is a `hidden beast` number, since 5 + 2 + 16 + 0 + 621 + 7 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47867751369 + 4292870400 = 218787^2 + 65520^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 52160621769 - 2¹⁵ = 52160589001 is a prime.

It is a super-2 number, since 2×52160621769² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52160621719) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 647097 + ... + 723225.

Almost surely, 2^52160621769 is an apocalyptic number.

52160621769 is the 228387-th square number.

52160621769 is the 114194-th centered octagonal number.

It is an amenable number.

52160621769 is a deficient number, since it is larger than the sum of its proper divisors (23183488254).

52160621769 is an frugal number, since it uses more digits than its factorization.

52160621769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152264 (or 76132 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 52160621769 in words is "fifty-two billion, one hundred sixty million, six hundred twenty-one thousand, seven hundred sixty-nine".