50513569 has 8 divisors (see below), whose sum is σ = 51172992. Its totient is φ = 49857600.

The previous prime is 50513557. The next prime is 50513597. The reversal of 50513569 is 96531505.

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

It is a cyclic number.

It is not a de Polignac number, because 50513569 - 2¹¹ = 50511521 is a prime.

It is a super-2 number, since 2×50513569² = 5103241306235522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50513509) 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, 40692 + ... + 41914.

It is an arithmetic number, because the mean of its divisors is an integer number (6396624).

Almost surely, 2^50513569 is an apocalyptic number.

It is an amenable number.

50513569 is a deficient number, since it is larger than the sum of its proper divisors (659423).

50513569 is a wasteful number, since it uses less digits than its factorization.

50513569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 50513569 is about 7107.2898491619. The cubic root of 50513569 is about 369.6601920335.

The spelling of 50513569 in words is "fifty million, five hundred thirteen thousand, five hundred sixty-nine".