52558477656 has 32 divisors (see below), whose sum is σ = 131629613760. Its totient is φ = 17488369952.

The previous prime is 52558477639. The next prime is 52558477661. The reversal of 52558477656 is 65677485525.

It is a self number, because there is not a number n which added to its sum of digits gives 52558477656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931370 + ... + 1958393.

It is an arithmetic number, because the mean of its divisors is an integer number (4113425430).

Almost surely, 2^52558477656 is an apocalyptic number.

It is an amenable number.

52558477656 is an abundant number, since it is smaller than the sum of its proper divisors (79071136104).

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

52558477656 is a wasteful number, since it uses less digits than its factorization.

52558477656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890335 (or 3890331 counting only the distinct ones).

The product of its digits is 70560000, while the sum is 60.

The spelling of 52558477656 in words is "fifty-two billion, five hundred fifty-eight million, four hundred seventy-seven thousand, six hundred fifty-six".