50805257 has 4 divisors (see below), whose sum is σ = 51520896. Its totient is φ = 50089620.

The previous prime is 50805239. The next prime is 50805263. The reversal of 50805257 is 75250805.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50805257 - 2⁶ = 50805193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50805457) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 357713 + ... + 357854.

It is an arithmetic number, because the mean of its divisors is an integer number (12880224).

Almost surely, 2^50805257 is an apocalyptic number.

It is an amenable number.

50805257 is a deficient number, since it is larger than the sum of its proper divisors (715639).

50805257 is an equidigital number, since it uses as much as digits as its factorization.

50805257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715638.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 50805257 is about 7127.7806503848. The cubic root of 50805257 is about 370.3703547569.

The spelling of 50805257 in words is "fifty million, eight hundred five thousand, two hundred fifty-seven".