50509631 has 4 divisors (see below), whose sum is σ = 51584352. Its totient is φ = 49434912.

The previous prime is 50509621. The next prime is 50509637. The reversal of 50509631 is 13690505.

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 50509631 - 2¹⁰ = 50508607 is a prime.

It is a super-2 number, since 2×50509631² = 5102445647512322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50509594 and 50509603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50509637) 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, 537290 + ... + 537383.

It is an arithmetic number, because the mean of its divisors is an integer number (12896088).

Almost surely, 2^50509631 is an apocalyptic number.

50509631 is a deficient number, since it is larger than the sum of its proper divisors (1074721).

50509631 is a wasteful number, since it uses less digits than its factorization.

50509631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074720.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 50509631 is about 7107.0128042659. The cubic root of 50509631 is about 369.6505856399.

The spelling of 50509631 in words is "fifty million, five hundred nine thousand, six hundred thirty-one".