50820065 has 8 divisors (see below), whose sum is σ = 61122600. Its totient is φ = 40563712.

The previous prime is 50820061. The next prime is 50820071. The reversal of 50820065 is 56002805.

It can be written as a sum of positive squares in 4 ways, for example, as 3265249 + 47554816 = 1807^2 + 6896^2 .

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 50820065 - 2² = 50820061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50820061) 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, 9074 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (7640325).

Almost surely, 2^50820065 is an apocalyptic number.

It is an amenable number.

50820065 is a deficient number, since it is larger than the sum of its proper divisors (10302535).

50820065 is a wasteful number, since it uses less digits than its factorization.

50820065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23091.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 50820065 is about 7128.8193272098. The cubic root of 50820065 is about 370.4063347045.

The spelling of 50820065 in words is "fifty million, eight hundred twenty thousand, sixty-five".