52015215660 has 24 divisors (see below), whose sum is σ = 145642604016. Its totient is φ = 13870724160.

The previous prime is 52015215647. The next prime is 52015215661. The reversal of 52015215660 is 6651251025.

It is not an unprimeable number, because it can be changed into a prime (52015215661) 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, 433460071 + ... + 433460190.

It is an arithmetic number, because the mean of its divisors is an integer number (6068441834).

Almost surely, 2^52015215660 is an apocalyptic number.

It is an amenable number.

52015215660 is an abundant number, since it is smaller than the sum of its proper divisors (93627388356).

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

52015215660 is a wasteful number, since it uses less digits than its factorization.

52015215660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866920273 (or 866920271 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 52015215660 its reverse (6651251025), we get a palindrome (58666466685).

The spelling of 52015215660 in words is "fifty-two billion, fifteen million, two hundred fifteen thousand, six hundred sixty".