50872591 has 8 divisors (see below), whose sum is σ = 63425664. Its totient is φ = 39640920.

The previous prime is 50872571. The next prime is 50872607. The reversal of 50872591 is 19527805.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50872591 - 2¹⁹ = 50348303 is a prime.

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 50872591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50872501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330265 + ... + 330418.

It is an arithmetic number, because the mean of its divisors is an integer number (7928208).

Almost surely, 2^50872591 is an apocalyptic number.

50872591 is a deficient number, since it is larger than the sum of its proper divisors (12553073).

50872591 is a wasteful number, since it uses less digits than its factorization.

50872591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660701.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 50872591 is about 7132.5024360318. The cubic root of 50872591 is about 370.5339041594.

The spelling of 50872591 in words is "fifty million, eight hundred seventy-two thousand, five hundred ninety-one".