50878247 has 4 divisors (see below), whose sum is σ = 58146576. Its totient is φ = 43609920.

The previous prime is 50878213. The next prime is 50878279. The reversal of 50878247 is 74287805.

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

It is a cyclic number.

It is not a de Polignac number, because 50878247 - 2¹⁸ = 50616103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50878147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3634154 + ... + 3634167.

It is an arithmetic number, because the mean of its divisors is an integer number (14536644).

Almost surely, 2^50878247 is an apocalyptic number.

50878247 is a deficient number, since it is larger than the sum of its proper divisors (7268329).

50878247 is an equidigital number, since it uses as much as digits as its factorization.

50878247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7268328.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 50878247 is about 7132.8989197941. The cubic root of 50878247 is about 370.5476356014.

The spelling of 50878247 in words is "fifty million, eight hundred seventy-eight thousand, two hundred forty-seven".