50397631 has 4 divisors (see below), whose sum is σ = 50577264. Its totient is φ = 50218000.

The previous prime is 50397619. The next prime is 50397637. The reversal of 50397631 is 13679305.

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 50397631 - 2²¹ = 48300479 is a prime.

It is a super-2 number, since 2×50397631² = 5079842420824322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50397637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89395 + ... + 89956.

It is an arithmetic number, because the mean of its divisors is an integer number (12644316).

Almost surely, 2^50397631 is an apocalyptic number.

50397631 is a deficient number, since it is larger than the sum of its proper divisors (179633).

50397631 is a wasteful number, since it uses less digits than its factorization.

50397631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179632.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 50397631 is about 7099.1288902231. The cubic root of 50397631 is about 369.3771625107.

The spelling of 50397631 in words is "fifty million, three hundred ninety-seven thousand, six hundred thirty-one".