50765731 has 4 divisors (see below), whose sum is σ = 51268464. Its totient is φ = 50263000.

The previous prime is 50765711. The next prime is 50765773. The reversal of 50765731 is 13756705.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50765731 - 2¹⁷ = 50634659 is a prime.

It is a super-2 number, since 2×50765731² = 5154318887928722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50765711) 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, 251215 + ... + 251416.

It is an arithmetic number, because the mean of its divisors is an integer number (12817116).

Almost surely, 2^50765731 is an apocalyptic number.

50765731 is a deficient number, since it is larger than the sum of its proper divisors (502733).

50765731 is a wasteful number, since it uses less digits than its factorization.

50765731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502732.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 50765731 is about 7125.0074385926. The cubic root of 50765731 is about 370.2742816499.

The spelling of 50765731 in words is "fifty million, seven hundred sixty-five thousand, seven hundred thirty-one".