50519731 has 4 divisors (see below), whose sum is σ = 50829832. Its totient is φ = 50209632.

The previous prime is 50519719. The next prime is 50519737. The reversal of 50519731 is 13791505.

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 50519731 - 2⁷ = 50519603 is a prime.

It is a super-2 number, since 2×50519731² = 5104486440624722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50519693 and 50519702.

It is not an unprimeable number, because it can be changed into a prime (50519737) 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, 154806 + ... + 155131.

It is an arithmetic number, because the mean of its divisors is an integer number (12707458).

Almost surely, 2^50519731 is an apocalyptic number.

50519731 is a deficient number, since it is larger than the sum of its proper divisors (310101).

50519731 is a wasteful number, since it uses less digits than its factorization.

50519731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310100.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 50519731 is about 7107.7233345144. The cubic root of 50519731 is about 369.6752226713.

The spelling of 50519731 in words is "fifty million, five hundred nineteen thousand, seven hundred thirty-one".