50047531 has 4 divisors (see below), whose sum is σ = 50199064. Its totient is φ = 49896000.

The previous prime is 50047523. The next prime is 50047537. The reversal of 50047531 is 13574005.

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 50047531 - 2³ = 50047523 is a prime.

It is a super-2 number, since 2×50047531² = 5009510718391922, 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 = 50047496 and 50047505.

It is not an unprimeable number, because it can be changed into a prime (50047537) 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, 75270 + ... + 75931.

It is an arithmetic number, because the mean of its divisors is an integer number (12549766).

Almost surely, 2^50047531 is an apocalyptic number.

50047531 is a deficient number, since it is larger than the sum of its proper divisors (151533).

50047531 is a wasteful number, since it uses less digits than its factorization.

50047531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151532.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 50047531 is about 7074.4279627402. The cubic root of 50047531 is about 368.5198500268.

The spelling of 50047531 in words is "fifty million, forty-seven thousand, five hundred thirty-one".