50631901 has 4 divisors (see below), whose sum is σ = 52833312. Its totient is φ = 48430492.

The previous prime is 50631887. The next prime is 50631913. The reversal of 50631901 is 10913605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50631901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50631101) 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, 1100671 + ... + 1100716.

It is an arithmetic number, because the mean of its divisors is an integer number (13208328).

Almost surely, 2^50631901 is an apocalyptic number.

It is an amenable number.

50631901 is a deficient number, since it is larger than the sum of its proper divisors (2201411).

50631901 is a wasteful number, since it uses less digits than its factorization.

50631901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201410.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 50631901 is about 7115.6096717007. The cubic root of 50631901 is about 369.9486196002.

The spelling of 50631901 in words is "fifty million, six hundred thirty-one thousand, nine hundred one".