52581170020 has 12 divisors (see below), whose sum is σ = 110420457084. Its totient is φ = 21032468000.

The previous prime is 52581169961. The next prime is 52581170023. The reversal of 52581170020 is 2007118525.

It can be written as a sum of positive squares in 2 ways, for example, as 17261229924 + 35319940096 = 131382^2 + 187936^2 .

It is not an unprimeable number, because it can be changed into a prime (52581170023) 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 3 ways as a sum of consecutive naturals, for example, 1314529231 + ... + 1314529270.

It is an arithmetic number, because the mean of its divisors is an integer number (9201704757).

Almost surely, 2^52581170020 is an apocalyptic number.

It is an amenable number.

52581170020 is an abundant number, since it is smaller than the sum of its proper divisors (57839287064).

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

52581170020 is a wasteful number, since it uses less digits than its factorization.

52581170020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629058510 (or 2629058508 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

Adding to 52581170020 its reverse (2007118525), we get a palindrome (54588288545).

The spelling of 52581170020 in words is "fifty-two billion, five hundred eighty-one million, one hundred seventy thousand, twenty".