52120137983 has 16 divisors (see below), whose sum is σ = 54982993920. Its totient is φ = 49269404736.

The previous prime is 52120137947. The next prime is 52120137991. The reversal of 52120137983 is 38973102125.

52120137983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52120137983 - 2²² = 52115943679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52120137983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52120137943) 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, 31453691 + ... + 31455347.

It is an arithmetic number, because the mean of its divisors is an integer number (3436437120).

Almost surely, 2^52120137983 is an apocalyptic number.

52120137983 is a deficient number, since it is larger than the sum of its proper divisors (2862855937).

52120137983 is a wasteful number, since it uses less digits than its factorization.

52120137983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 52120137983 in words is "fifty-two billion, one hundred twenty million, one hundred thirty-seven thousand, nine hundred eighty-three".