50729778 has 24 divisors (see below), whose sum is σ = 119907216. Its totient is φ = 15372600.

The previous prime is 50729761. The next prime is 50729797. The reversal of 50729778 is 87792705.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127908 + ... + 128303.

It is an arithmetic number, because the mean of its divisors is an integer number (4996134).

Almost surely, 2^50729778 is an apocalyptic number.

50729778 is an abundant number, since it is smaller than the sum of its proper divisors (69177438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50729778 is a wasteful number, since it uses less digits than its factorization.

50729778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256230 (or 256227 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 50729778 is about 7122.4839768160. The cubic root of 50729778 is about 370.1868498665.

The spelling of 50729778 in words is "fifty million, seven hundred twenty-nine thousand, seven hundred seventy-eight".