50385731 has 24 divisors (see below), whose sum is σ = 58317840. Its totient is φ = 43440320.

The previous prime is 50385719. The next prime is 50385733. The reversal of 50385731 is 13758305.

It is not a de Polignac number, because 50385731 - 2⁶ = 50385667 is a prime.

It is a super-2 number, since 2×50385731² = 5077443776808722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50385733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291161 + ... + 291333.

It is an arithmetic number, because the mean of its divisors is an integer number (2429910).

Almost surely, 2^50385731 is an apocalyptic number.

50385731 is a deficient number, since it is larger than the sum of its proper divisors (7932109).

50385731 is a wasteful number, since it uses less digits than its factorization.

50385731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 50385731 is about 7098.2907097413. The cubic root of 50385731 is about 369.3480875049.

The spelling of 50385731 in words is "fifty million, three hundred eighty-five thousand, seven hundred thirty-one".