50505831 has 6 divisors (see below), whose sum is σ = 72952880. Its totient is φ = 33670548.

The previous prime is 50505823. The next prime is 50505839. The reversal of 50505831 is 13850505.

It is an interprime number because it is at equal distance from previous prime (50505823) and next prime (50505839).

It is not a de Polignac number, because 50505831 - 2³ = 50505823 is a prime.

It is a super-2 number, since 2×50505831² = 5101677930001122, 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 = 50505795 and 50505804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505839) 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 5 ways as a sum of consecutive naturals, for example, 2805871 + ... + 2805888.

Almost surely, 2^50505831 is an apocalyptic number.

50505831 is a deficient number, since it is larger than the sum of its proper divisors (22447049).

50505831 is a wasteful number, since it uses less digits than its factorization.

50505831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611765 (or 5611762 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 50505831 is about 7106.7454576620. The cubic root of 50505831 is about 369.6413154115.

The spelling of 50505831 in words is "fifty million, five hundred five thousand, eight hundred thirty-one".