52015403140 has 24 divisors (see below), whose sum is σ = 109248957720. Its totient is φ = 20802997248.

The previous prime is 52015403107. The next prime is 52015403171. The reversal of 52015403140 is 4130451025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24908414976 + 27106988164 = 157824^2 + 164642^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60627 + ... + 328186.

It is an arithmetic number, because the mean of its divisors is an integer number (4552039905).

Almost surely, 2^52015403140 is an apocalyptic number.

It is an amenable number.

52015403140 is an abundant number, since it is smaller than the sum of its proper divisors (57233554580).

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

52015403140 is a wasteful number, since it uses less digits than its factorization.

52015403140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395511 (or 395509 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 52015403140 its reverse (4130451025), we get a palindrome (56145854165).

The spelling of 52015403140 in words is "fifty-two billion, fifteen million, four hundred three thousand, one hundred forty".