52057566405 has 80 divisors (see below), whose sum is σ = 100585545984. Its totient is φ = 25605590400.

The previous prime is 52057566391. The next prime is 52057566503. The reversal of 52057566405 is 50466575025.

It is not a de Polignac number, because 52057566405 - 2⁸ = 52057566149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6982930 + ... + 6990380.

Almost surely, 2^52057566405 is an apocalyptic number.

It is an amenable number.

52057566405 is a deficient number, since it is larger than the sum of its proper divisors (48527979579).

52057566405 is a wasteful number, since it uses less digits than its factorization.

52057566405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8808 (or 8799 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 52057566405 in words is "fifty-two billion, fifty-seven million, five hundred sixty-six thousand, four hundred five".