50820505 has 8 divisors (see below), whose sum is σ = 61895232. Its totient is φ = 40049328.

The previous prime is 50820491. The next prime is 50820521. The reversal of 50820505 is 50502805.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50820505 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 50820505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75517 + ... + 76186.

It is an arithmetic number, because the mean of its divisors is an integer number (7736904).

Almost surely, 2^50820505 is an apocalyptic number.

It is an amenable number.

50820505 is a deficient number, since it is larger than the sum of its proper divisors (11074727).

50820505 is a wasteful number, since it uses less digits than its factorization.

50820505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151775.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 50820505 is about 7128.8501877933. The cubic root of 50820505 is about 370.4074036938.

The spelling of 50820505 in words is "fifty million, eight hundred twenty thousand, five hundred five".