50647631 has 4 divisors (see below), whose sum is σ = 50662992. Its totient is φ = 50632272.

The previous prime is 50647621. The next prime is 50647643. The reversal of 50647631 is 13674605.

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 50647631 - 2⁶ = 50647567 is a prime.

It is a super-2 number, since 2×50647631² = 5130365051824322, 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 (50647621) 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, 491 + ... + 10076.

It is an arithmetic number, because the mean of its divisors is an integer number (12665748).

Almost surely, 2^50647631 is an apocalyptic number.

50647631 is a deficient number, since it is larger than the sum of its proper divisors (15361).

50647631 is a wasteful number, since it uses less digits than its factorization.

50647631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15360.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 50647631 is about 7116.7149022565. The cubic root of 50647631 is about 369.9869267356.

The spelling of 50647631 in words is "fifty million, six hundred forty-seven thousand, six hundred thirty-one".