52530015213 has 16 divisors (see below), whose sum is σ = 83808571840. Its totient is φ = 32326162992.

The previous prime is 52530015173. The next prime is 52530015221. The reversal of 52530015213 is 31251003525.

It is a happy number.

It is not a de Polignac number, because 52530015213 - 2⁶ = 52530015149 is a prime.

It is a super-2 number, since 2×52530015213² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52530015233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74828731 + ... + 74829432.

It is an arithmetic number, because the mean of its divisors is an integer number (5238035740).

Almost surely, 2^52530015213 is an apocalyptic number.

It is an amenable number.

52530015213 is a deficient number, since it is larger than the sum of its proper divisors (31278556627).

52530015213 is a wasteful number, since it uses less digits than its factorization.

52530015213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149658185 (or 149658179 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 52530015213 its reverse (31251003525), we get a palindrome (83781018738).

The spelling of 52530015213 in words is "fifty-two billion, five hundred thirty million, fifteen thousand, two hundred thirteen".