52402992889 has 9 divisors (see below), whose sum is σ = 56747291853. Its totient is φ = 48369246432.

The previous prime is 52402992743. The next prime is 52402992913. The reversal of 52402992889 is 98829920425.

The square root of 52402992889 is 228917.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1006475625 + 51396517264 = 31725^2 + 226708^2 .

It is not a de Polignac number, because 52402992889 - 2⁹ = 52402992377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52402993889) 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, 2967117 + ... + 2984725.

Almost surely, 2^52402992889 is an apocalyptic number.

52402992889 is the 228917-th square number.

52402992889 is the 114459-th centered octagonal number.

It is an amenable number.

52402992889 is a deficient number, since it is larger than the sum of its proper divisors (4344298964).

52402992889 is an frugal number, since it uses more digits than its factorization.

52402992889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35244 (or 17622 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 52402992889 in words is "fifty-two billion, four hundred two million, nine hundred ninety-two thousand, eight hundred eighty-nine".