50522818 has 4 divisors (see below), whose sum is σ = 75784230. Its totient is φ = 25261408.

The previous prime is 50522809. The next prime is 50522837. The reversal of 50522818 is 81822505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27741289 + 22781529 = 5267^2 + 4773^2 .

It is a super-2 number, since 2×50522818² = 5105110277322248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 50522818.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12630703 + ... + 12630706.

Almost surely, 2^50522818 is an apocalyptic number.

50522818 is a deficient number, since it is larger than the sum of its proper divisors (25261412).

50522818 is a wasteful number, since it uses less digits than its factorization.

50522818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25261411.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 50522818 is about 7107.9404893401. The cubic root of 50522818 is about 369.6827521662.

The spelling of 50522818 in words is "fifty million, five hundred twenty-two thousand, eight hundred eighteen".