52147016531 has 2 divisors, whose sum is σ = 52147016532. Its totient is φ = 52147016530.

The previous prime is 52147016527. The next prime is 52147016567. The reversal of 52147016531 is 13561074125.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52147016531 - 2² = 52147016527 is a prime.

It is a super-2 number, since 2×52147016531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52147016491 and 52147016500.

It is not a weakly prime, because it can be changed into another prime (52147616531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26073508265 + 26073508266.

It is an arithmetic number, because the mean of its divisors is an integer number (26073508266).

Almost surely, 2^52147016531 is an apocalyptic number.

52147016531 is a deficient number, since it is larger than the sum of its proper divisors (1).

52147016531 is an equidigital number, since it uses as much as digits as its factorization.

52147016531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 52147016531 in words is "fifty-two billion, one hundred forty-seven million, sixteen thousand, five hundred thirty-one".