50700556657 has 4 divisors (see below), whose sum is σ = 50721888676. Its totient is φ = 50679224640.

The previous prime is 50700556639. The next prime is 50700556691. The reversal of 50700556657 is 75665500705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75665500705 = 5 ⋅15133100141.

It can be written as a sum of positive squares in 2 ways, for example, as 35067805696 + 15632750961 = 187264^2 + 125031^2 .

It is a cyclic number.

It is not a de Polignac number, because 50700556657 - 2¹¹ = 50700554609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50700556457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10662444 + ... + 10667197.

It is an arithmetic number, because the mean of its divisors is an integer number (12680472169).

Almost surely, 2^50700556657 is an apocalyptic number.

It is an amenable number.

50700556657 is a deficient number, since it is larger than the sum of its proper divisors (21332019).

50700556657 is a wasteful number, since it uses less digits than its factorization.

50700556657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21332018.

The product of its (nonzero) digits is 1102500, while the sum is 46.

The spelling of 50700556657 in words is "fifty billion, seven hundred million, five hundred fifty-six thousand, six hundred fifty-seven".