50457721155 has 16 divisors (see below), whose sum is σ = 80738760960. Its totient is φ = 26908648928.

The previous prime is 50457721147. The next prime is 50457721169. The reversal of 50457721155 is 55112775405.

It is a cyclic number.

It is not a de Polignac number, because 50457721155 - 2³ = 50457721147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72034 + ... + 325736.

It is an arithmetic number, because the mean of its divisors is an integer number (5046172560).

Almost surely, 2^50457721155 is an apocalyptic number.

50457721155 is a deficient number, since it is larger than the sum of its proper divisors (30281039805).

50457721155 is a wasteful number, since it uses less digits than its factorization.

50457721155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266970.

The product of its (nonzero) digits is 245000, while the sum is 42.

The spelling of 50457721155 in words is "fifty billion, four hundred fifty-seven million, seven hundred twenty-one thousand, one hundred fifty-five".