50075981 has 4 divisors (see below), whose sum is σ = 50093472. Its totient is φ = 50058492.

The previous prime is 50075933. The next prime is 50076041. The reversal of 50075981 is 18957005.

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 50075981 - 2²² = 45881677 is a prime.

It is a super-2 number, since 2×50075981² = 5015207746224722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (59075981) 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, 3335 + ... + 10548.

It is an arithmetic number, because the mean of its divisors is an integer number (12523368).

Almost surely, 2^50075981 is an apocalyptic number.

It is an amenable number.

50075981 is a deficient number, since it is larger than the sum of its proper divisors (17491).

50075981 is a wasteful number, since it uses less digits than its factorization.

50075981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17490.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 50075981 is about 7076.4384403455. The cubic root of 50075981 is about 368.5896663494.

The spelling of 50075981 in words is "fifty million, seventy-five thousand, nine hundred eighty-one".