52321530121 has 27 divisors (see below), whose sum is σ = 62462883477. Its totient is φ = 43698298560.

The previous prime is 52321530119. The next prime is 52321530143. The reversal of 52321530121 is 12103512325.

The square root of 52321530121 is 228739.

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 15673788025 + 36647742096 = 125195^2 + 191436^2 .

It is not a de Polignac number, because 52321530121 - 2¹ = 52321530119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52321530181) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65647695 + ... + 65648491.

Almost surely, 2^52321530121 is an apocalyptic number.

52321530121 is the 228739-th square number.

52321530121 is the 114370-th centered octagonal number.

It is an amenable number.

52321530121 is a deficient number, since it is larger than the sum of its proper divisors (10141353356).

52321530121 is an frugal number, since it uses more digits than its factorization.

52321530121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Multiplying 52321530121 by its sum of digits (25), we get a square (1308038253025 = 1143695²).

The spelling of 52321530121 in words is "fifty-two billion, three hundred twenty-one million, five hundred thirty thousand, one hundred twenty-one".