52504040000 has 70 divisors (see below), whose sum is σ = 130193054574. Its totient is φ = 21001600000.

The previous prime is 52504039993. The next prime is 52504040023. The reversal of 52504040000 is 4040525.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 32975654464 + 19528385536 = 181592^2 + 139744^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 616301 + ... + 696300.

Almost surely, 2^52504040000 is an apocalyptic number.

52504040000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52504040000 is an abundant number, since it is smaller than the sum of its proper divisors (77689014574).

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

52504040000 is an equidigital number, since it uses as much as digits as its factorization.

52504040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312633 (or 1312608 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

Adding to 52504040000 its reverse (4040525), we get a palindrome (52508080525).

The spelling of 52504040000 in words is "fifty-two billion, five hundred four million, forty thousand".