52639421605 has 16 divisors (see below), whose sum is σ = 66888832320. Its totient is φ = 39630949632.

The previous prime is 52639421579. The next prime is 52639421609. The reversal of 52639421605 is 50612493625.

It is a cyclic number.

It is not a de Polignac number, because 52639421605 - 2²³ = 52631032997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52639421609) 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, 1405006 + ... + 1441984.

It is an arithmetic number, because the mean of its divisors is an integer number (4180552020).

Almost surely, 2^52639421605 is an apocalyptic number.

It is an amenable number.

52639421605 is a deficient number, since it is larger than the sum of its proper divisors (14249410715).

52639421605 is a wasteful number, since it uses less digits than its factorization.

52639421605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53748.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 52639421605 in words is "fifty-two billion, six hundred thirty-nine million, four hundred twenty-one thousand, six hundred five".