50053056981 has 4 divisors (see below), whose sum is σ = 66737409312. Its totient is φ = 33368704652.

The previous prime is 50053056967. The next prime is 50053057001. The reversal of 50053056981 is 18965035005.

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.

It is a cyclic number.

It is not a de Polignac number, because 50053056981 - 2⁷ = 50053056853 is a prime.

It is a super-2 number, since 2×50053056981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50053056931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8342176161 + ... + 8342176166.

It is an arithmetic number, because the mean of its divisors is an integer number (16684352328).

Almost surely, 2^50053056981 is an apocalyptic number.

It is an amenable number.

50053056981 is a deficient number, since it is larger than the sum of its proper divisors (16684352331).

50053056981 is a wasteful number, since it uses less digits than its factorization.

50053056981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16684352330.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 50053056981 in words is "fifty billion, fifty-three million, fifty-six thousand, nine hundred eighty-one".