50556702645 has 24 divisors (see below), whose sum is σ = 92786420376. Its totient is φ = 25377481728.

The previous prime is 50556702641. The next prime is 50556702689. The reversal of 50556702645 is 54620765505.

50556702645 is a `hidden beast` number, since 5 + 0 + 556 + 70 + 26 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20266084881 + 30290617764 = 142359^2 + 174042^2 .

It is not a de Polignac number, because 50556702645 - 2² = 50556702641 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50556702645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50556702641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33042832 + ... + 33044361.

It is an arithmetic number, because the mean of its divisors is an integer number (3866100849).

Almost surely, 2^50556702645 is an apocalyptic number.

It is an amenable number.

50556702645 is a deficient number, since it is larger than the sum of its proper divisors (42229717731).

50556702645 is a wasteful number, since it uses less digits than its factorization.

50556702645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66087221 (or 66087218 counting only the distinct ones).

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

The spelling of 50556702645 in words is "fifty billion, five hundred fifty-six million, seven hundred two thousand, six hundred forty-five".