56805399950 has 24 divisors (see below), whose sum is σ = 113785587048. Its totient is φ = 20974301280.

The previous prime is 56805399941. The next prime is 56805399953. The reversal of 56805399950 is 5999350865.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 56805399950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56805399953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43695812 + ... + 43697111.

It is an arithmetic number, because the mean of its divisors is an integer number (4741066127).

Almost surely, 2^56805399950 is an apocalyptic number.

56805399950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56805399950 is an abundant number, since it is smaller than the sum of its proper divisors (56980187098).

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

56805399950 is a wasteful number, since it uses less digits than its factorization.

56805399950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87392948 (or 87392943 counting only the distinct ones).

The product of its (nonzero) digits is 13122000, while the sum is 59.

The spelling of 56805399950 in words is "fifty-six billion, eight hundred five million, three hundred ninety-nine thousand, nine hundred fifty".