52021510331 has 24 divisors (see below), whose sum is σ = 65806451424. Its totient is φ = 40142234880.

The previous prime is 52021510319. The next prime is 52021510339. The reversal of 52021510331 is 13301512025.

It is a happy number.

It is not a de Polignac number, because 52021510331 - 2¹⁸ = 52021248187 is a prime.

It is a super-2 number, since 2×52021510331² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 52021510297 and 52021510306.

It is not an unprimeable number, because it can be changed into a prime (52021510339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350240 + ... + 476141.

It is an arithmetic number, because the mean of its divisors is an integer number (2741935476).

Almost surely, 2^52021510331 is an apocalyptic number.

52021510331 is a deficient number, since it is larger than the sum of its proper divisors (13784941093).

52021510331 is a wasteful number, since it uses less digits than its factorization.

52021510331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826451 (or 826428 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 52021510331 in words is "fifty-two billion, twenty-one million, five hundred ten thousand, three hundred thirty-one".