50257605613 has 4 divisors (see below), whose sum is σ = 50258054880. Its totient is φ = 50257156348.

The previous prime is 50257605611. The next prime is 50257605677. The reversal of 50257605613 is 31650675205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 50257605613 - 2¹ = 50257605611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50257605611) 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, 90978 + ... + 329836.

It is an arithmetic number, because the mean of its divisors is an integer number (12564513720).

Almost surely, 2^50257605613 is an apocalyptic number.

It is an amenable number.

50257605613 is a deficient number, since it is larger than the sum of its proper divisors (449267).

50257605613 is a wasteful number, since it uses less digits than its factorization.

50257605613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449266.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 50257605613 in words is "fifty billion, two hundred fifty-seven million, six hundred five thousand, six hundred thirteen".