52111209612 has 48 divisors (see below), whose sum is σ = 151596248832. Its totient is φ = 13535378880.

The previous prime is 52111209599. The next prime is 52111209613. The reversal of 52111209612 is 21690211125.

It is a self number, because there is not a number n which added to its sum of digits gives 52111209612.

It is not an unprimeable number, because it can be changed into a prime (52111209613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28197783 + ... + 28199630.

It is an arithmetic number, because the mean of its divisors is an integer number (3158255184).

Almost surely, 2^52111209612 is an apocalyptic number.

It is an amenable number.

52111209612 is an abundant number, since it is smaller than the sum of its proper divisors (99485039220).

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

52111209612 is a wasteful number, since it uses less digits than its factorization.

52111209612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56397438 (or 56397436 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The spelling of 52111209612 in words is "fifty-two billion, one hundred eleven million, two hundred nine thousand, six hundred twelve".