52508213238 has 16 divisors (see below), whose sum is σ = 113094613296. Its totient is φ = 16156373280.

The previous prime is 52508213237. The next prime is 52508213281. The reversal of 52508213238 is 83231280525.

It is a super-2 number, since 2×52508213238² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 52508213196 and 52508213205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52508213237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336591033 + ... + 336591188.

It is an arithmetic number, because the mean of its divisors is an integer number (7068413331).

Almost surely, 2^52508213238 is an apocalyptic number.

52508213238 is an abundant number, since it is smaller than the sum of its proper divisors (60586400058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52508213238 is a wasteful number, since it uses less digits than its factorization.

52508213238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673182239.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 52508213238 in words is "fifty-two billion, five hundred eight million, two hundred thirteen thousand, two hundred thirty-eight".