50072931 has 16 divisors (see below), whose sum is σ = 75993120. Its totient is φ = 32567040.

The previous prime is 50072921. The next prime is 50072933. The reversal of 50072931 is 13927005.

50072931 is a `hidden beast` number, since 500 + 72 + 93 + 1 = 666.

It is not a de Polignac number, because 50072931 - 2¹⁰ = 50071907 is a prime.

It is a super-2 number, since 2×50072931² = 5014596837861522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 50072895 and 50072904.

It is not an unprimeable number, because it can be changed into a prime (50072933) 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, 21510 + ... + 23723.

It is an arithmetic number, because the mean of its divisors is an integer number (4749570).

Almost surely, 2^50072931 is an apocalyptic number.

50072931 is a deficient number, since it is larger than the sum of its proper divisors (25920189).

50072931 is a wasteful number, since it uses less digits than its factorization.

50072931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45283 (or 45277 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 50072931 is about 7076.2229331756. Note that the first 3 decimals coincide. The cubic root of 50072931 is about 368.5821829127.

Adding to 50072931 its reverse (13927005), we get a palindrome (63999936).

The spelling of 50072931 in words is "fifty million, seventy-two thousand, nine hundred thirty-one".