50712981 has 16 divisors (see below), whose sum is σ = 73915968. Its totient is φ = 30672000.

The previous prime is 50712979. The next prime is 50713031. The reversal of 50712981 is 18921705.

It is not a de Polignac number, because 50712981 - 2¹ = 50712979 is a prime.

It is a super-2 number, since 2×50712981² = 5143612883812722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 15 ways as a sum of consecutive naturals, for example, 18555 + ... + 21111.

It is an arithmetic number, because the mean of its divisors is an integer number (4619748).

Almost surely, 2^50712981 is an apocalyptic number.

It is an amenable number.

50712981 is a deficient number, since it is larger than the sum of its proper divisors (23202987).

50712981 is a wasteful number, since it uses less digits than its factorization.

50712981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 50712981 is about 7121.3047259614. The cubic root of 50712981 is about 370.1459881665.

The spelling of 50712981 in words is "fifty million, seven hundred twelve thousand, nine hundred eighty-one".