52809523730 has 16 divisors (see below), whose sum is σ = 95063938200. Its totient is φ = 21122299392.

The previous prime is 52809523729. The next prime is 52809523747. The reversal of 52809523730 is 3732590825.

It can be written as a sum of positive squares in 4 ways, for example, as 43654669969 + 9154853761 = 208937^2 + 95681^2 .

It is a super-2 number, since 2×52809523730² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35999 + ... + 326978.

Almost surely, 2^52809523730 is an apocalyptic number.

52809523730 is a deficient number, since it is larger than the sum of its proper divisors (42254414470).

52809523730 is a wasteful number, since it uses less digits than its factorization.

52809523730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377533.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 52809523730 in words is "fifty-two billion, eight hundred nine million, five hundred twenty-three thousand, seven hundred thirty".