50128770 has 16 divisors (see below), whose sum is σ = 120309120. Its totient is φ = 13367664.

The previous prime is 50128759. The next prime is 50128777. The reversal of 50128770 is 7782105.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1670959 = 50128770 / (5 + 0 + 1 + 2 + 8 + 7 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (50128777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835450 + ... + 835509.

It is an arithmetic number, because the mean of its divisors is an integer number (7519320).

Almost surely, 2^50128770 is an apocalyptic number.

50128770 is an abundant number, since it is smaller than the sum of its proper divisors (70180350).

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

50128770 is a wasteful number, since it uses less digits than its factorization.

50128770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670969.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 50128770 is about 7080.1673709030. The cubic root of 50128770 is about 368.7191405756.

The spelling of 50128770 in words is "fifty million, one hundred twenty-eight thousand, seven hundred seventy".