50712991 has 6 divisors (see below), whose sum is σ = 58992720. Its totient is φ = 43468236.

The previous prime is 50712979. The next prime is 50713031. The reversal of 50712991 is 19921705.

It is not a de Polignac number, because 50712991 - 2⁷ = 50712863 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 (50712901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 517431 + ... + 517528.

It is an arithmetic number, because the mean of its divisors is an integer number (9832120).

Almost surely, 2^50712991 is an apocalyptic number.

50712991 is a deficient number, since it is larger than the sum of its proper divisors (8279729).

50712991 is a wasteful number, since it uses less digits than its factorization.

50712991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034973 (or 1034966 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 50712991 is about 7121.3054280799. The cubic root of 50712991 is about 370.1460124959.

The spelling of 50712991 in words is "fifty million, seven hundred twelve thousand, nine hundred ninety-one".