50571631 has 4 divisors (see below), whose sum is σ = 55169064. Its totient is φ = 45974200.

The previous prime is 50571607. The next prime is 50571649. The reversal of 50571631 is 13617505.

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 50571631 - 2¹³ = 50563439 is a prime.

It is a super-2 number, since 2×50571631² = 5114979724000322, 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 50571631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50571691) 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, 2298700 + ... + 2298721.

It is an arithmetic number, because the mean of its divisors is an integer number (13792266).

Almost surely, 2^50571631 is an apocalyptic number.

50571631 is a deficient number, since it is larger than the sum of its proper divisors (4597433).

50571631 is a wasteful number, since it uses less digits than its factorization.

50571631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4597432.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 50571631 is about 7111.3733554075. The cubic root of 50571631 is about 369.8017710998.

The spelling of 50571631 in words is "fifty million, five hundred seventy-one thousand, six hundred thirty-one".