50778628 has 12 divisors (see below), whose sum is σ = 88941132. Its totient is φ = 25366880.

The previous prime is 50778551. The next prime is 50778649. The reversal of 50778628 is 82687705.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10810944 + 39967684 = 3288^2 + 6322^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138 + ... + 10078.

It is an arithmetic number, because the mean of its divisors is an integer number (7411761).

Almost surely, 2^50778628 is an apocalyptic number.

It is an amenable number.

50778628 is a deficient number, since it is larger than the sum of its proper divisors (38162504).

50778628 is a wasteful number, since it uses less digits than its factorization.

50778628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222 (or 11220 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 50778628 is about 7125.9124328047. The cubic root of 50778628 is about 370.3056349728.

The spelling of 50778628 in words is "fifty million, seven hundred seventy-eight thousand, six hundred twenty-eight".