50778259 has 6 divisors (see below), whose sum is σ = 59068644. Its totient is φ = 43524180.

The previous prime is 50778251. The next prime is 50778263. The reversal of 50778259 is 95287705.

It is not a de Polignac number, because 50778259 - 2³ = 50778251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50778251) 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 5 ways as a sum of consecutive naturals, for example, 518097 + ... + 518194.

It is an arithmetic number, because the mean of its divisors is an integer number (9844774).

Almost surely, 2^50778259 is an apocalyptic number.

50778259 is a deficient number, since it is larger than the sum of its proper divisors (8290385).

50778259 is a wasteful number, since it uses less digits than its factorization.

50778259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036305 (or 1036298 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 50778259 is about 7125.8865413365. The cubic root of 50778259 is about 370.3047379871.

The spelling of 50778259 in words is "fifty million, seven hundred seventy-eight thousand, two hundred fifty-nine".