50855513 has 8 divisors (see below), whose sum is σ = 51391200. Its totient is φ = 50322528.

The previous prime is 50855509. The next prime is 50855549. The reversal of 50855513 is 31555805.

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 50855513 - 2² = 50855509 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 50855513.

It is not an unprimeable number, because it can be changed into a prime (50855503) 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, 78770 + ... + 79412.

It is an arithmetic number, because the mean of its divisors is an integer number (6423900).

Almost surely, 2^50855513 is an apocalyptic number.

It is an amenable number.

50855513 is a deficient number, since it is larger than the sum of its proper divisors (535687).

50855513 is a wasteful number, since it uses less digits than its factorization.

50855513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 50855513 is about 7131.3051400147. The cubic root of 50855513 is about 370.4924366020.

The spelling of 50855513 in words is "fifty million, eight hundred fifty-five thousand, five hundred thirteen".