50809519 has 6 divisors (see below), whose sum is σ = 51115056. Its totient is φ = 50505120.

The previous prime is 50809513. The next prime is 50809541. The reversal of 50809519 is 91590805.

It is not a de Polignac number, because 50809519 - 2⁵ = 50809487 is a prime.

It is a super-2 number, since 2×50809519² = 5163214442022722, 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 (50809513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117127 + ... + 117559.

It is an arithmetic number, because the mean of its divisors is an integer number (8519176).

Almost surely, 2^50809519 is an apocalyptic number.

50809519 is a deficient number, since it is larger than the sum of its proper divisors (305537).

50809519 is an frugal number, since it uses more digits than its factorization.

50809519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 50809519 is about 7128.0796151558. The cubic root of 50809519 is about 370.3807111282.

The spelling of 50809519 in words is "fifty million, eight hundred nine thousand, five hundred nineteen".