50878279 has 2 divisors, whose sum is σ = 50878280. Its totient is φ = 50878278.

The previous prime is 50878213. The next prime is 50878283. The reversal of 50878279 is 97287805.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50878279 - 2⁹ = 50877767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50878379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25439139 + 25439140.

It is an arithmetic number, because the mean of its divisors is an integer number (25439140).

Almost surely, 2^50878279 is an apocalyptic number.

50878279 is a deficient number, since it is larger than the sum of its proper divisors (1).

50878279 is an equidigital number, since it uses as much as digits as its factorization.

50878279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 50878279 is about 7132.9011629210. The cubic root of 50878279 is about 370.5477132870.

It can be divided in two parts, 5087 and 8279, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 50878279 in words is "fifty million, eight hundred seventy-eight thousand, two hundred seventy-nine".