50873131 has 4 divisors (see below), whose sum is σ = 50915952. Its totient is φ = 50830312.

The previous prime is 50873101. The next prime is 50873149. The reversal of 50873131 is 13137805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13137805 = 5 ⋅2627561.

It is a cyclic number.

It is not a de Polignac number, because 50873131 - 2¹³ = 50864939 is a prime.

It is a super-2 number, since 2×50873131² = 5176150915486322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50873131.

It is not an unprimeable number, because it can be changed into a prime (50873101) 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, 19576 + ... + 22021.

It is an arithmetic number, because the mean of its divisors is an integer number (12728988).

Almost surely, 2^50873131 is an apocalyptic number.

50873131 is a deficient number, since it is larger than the sum of its proper divisors (42821).

50873131 is a wasteful number, since it uses less digits than its factorization.

50873131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42820.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 50873131 is about 7132.5402908080. The cubic root of 50873131 is about 370.5352151967.

It can be divided in two parts, 50 and 873131, that added together give a triangular number (873181 = T₁₃₂₁).

The spelling of 50873131 in words is "fifty million, eight hundred seventy-three thousand, one hundred thirty-one".