50820081 has 16 divisors (see below), whose sum is σ = 73101504. Its totient is φ = 31218624.

The previous prime is 50820073. The next prime is 50820083. The reversal of 50820081 is 18002805.

It is not a de Polignac number, because 50820081 - 2³ = 50820073 is a prime.

It is a super-2 number, since 2×50820081² = 5165361265693122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50820083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38230 + ... + 39536.

It is an arithmetic number, because the mean of its divisors is an integer number (4568844).

Almost surely, 2^50820081 is an apocalyptic number.

It is an amenable number.

50820081 is a deficient number, since it is larger than the sum of its proper divisors (22281423).

50820081 is a wasteful number, since it uses less digits than its factorization.

50820081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 50820081 is about 7128.8204494152. The cubic root of 50820081 is about 370.4063735770.

Adding to 50820081 its reverse (18002805), we get a palindrome (68822886).

The spelling of 50820081 in words is "fifty million, eight hundred twenty thousand, eighty-one".