50078779 has 4 divisors (see below), whose sum is σ = 50333184. Its totient is φ = 49824376.

The previous prime is 50078773. The next prime is 50078783. The reversal of 50078779 is 97787005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97787005 = 5 ⋅19557401.

It is a cyclic number.

It is not a de Polignac number, because 50078779 - 2⁹ = 50078267 is a prime.

It is a super-2 number, since 2×50078779² = 5015768212261682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50078773) 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, 126907 + ... + 127300.

It is an arithmetic number, because the mean of its divisors is an integer number (12583296).

Almost surely, 2^50078779 is an apocalyptic number.

50078779 is a deficient number, since it is larger than the sum of its proper divisors (254405).

50078779 is a wasteful number, since it uses less digits than its factorization.

50078779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254404.

The product of its (nonzero) digits is 123480, while the sum is 43.

The square root of 50078779 is about 7076.6361359053. The cubic root of 50078779 is about 368.5965312153.

The spelling of 50078779 in words is "fifty million, seventy-eight thousand, seven hundred seventy-nine".