50820257 has 2 divisors, whose sum is σ = 50820258. Its totient is φ = 50820256.

The previous prime is 50820251. The next prime is 50820283. The reversal of 50820257 is 75202805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36675136 + 14145121 = 6056^2 + 3761^2 .

It is a cyclic number.

It is not a de Polignac number, because 50820257 - 2⁴ = 50820241 is a prime.

It is not a weakly prime, because it can be changed into another prime (50820251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25410128 + 25410129.

It is an arithmetic number, because the mean of its divisors is an integer number (25410129).

Almost surely, 2^50820257 is an apocalyptic number.

It is an amenable number.

50820257 is a deficient number, since it is larger than the sum of its proper divisors (1).

50820257 is an equidigital number, since it uses as much as digits as its factorization.

50820257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 50820257 is about 7128.8327936626. The cubic root of 50820257 is about 370.4068011733.

The spelling of 50820257 in words is "fifty million, eight hundred twenty thousand, two hundred fifty-seven".