50749881 has 16 divisors (see below), whose sum is σ = 83282304. Its totient is φ = 26769024.

The previous prime is 50749871. The next prime is 50749889. The reversal of 50749881 is 18894705.

It is not a de Polignac number, because 50749881 - 2²³ = 42361273 is a prime.

It is a super-2 number, since 2×50749881² = 5151100843028322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50749889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92676 + ... + 93221.

It is an arithmetic number, because the mean of its divisors is an integer number (5205144).

Almost surely, 2^50749881 is an apocalyptic number.

It is an amenable number.

50749881 is a deficient number, since it is larger than the sum of its proper divisors (32532423).

50749881 is a wasteful number, since it uses less digits than its factorization.

50749881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185920.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 50749881 is about 7123.8950722200. The cubic root of 50749881 is about 370.2357421460.

The spelling of 50749881 in words is "fifty million, seven hundred forty-nine thousand, eight hundred eighty-one".