50403131 has 4 divisors (see below), whose sum is σ = 52141200. Its totient is φ = 48665064.

The previous prime is 50403121. The next prime is 50403163. The reversal of 50403131 is 13130405.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50403131 is a prime.

It is a super-2 number, since 2×50403131² = 5080951229206322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50403121) 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, 868991 + ... + 869048.

It is an arithmetic number, because the mean of its divisors is an integer number (13035300).

Almost surely, 2^50403131 is an apocalyptic number.

50403131 is a deficient number, since it is larger than the sum of its proper divisors (1738069).

50403131 is a wasteful number, since it uses less digits than its factorization.

50403131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738068.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 50403131 is about 7099.5162511258. The cubic root of 50403131 is about 369.3905989921.

Adding to 50403131 its reverse (13130405), we get a palindrome (63533536).

The spelling of 50403131 in words is "fifty million, four hundred three thousand, one hundred thirty-one".