50978090 has 16 divisors (see below), whose sum is σ = 93018888. Its totient is φ = 20111616.

The previous prime is 50978077. The next prime is 50978093. The reversal of 50978090 is 9087905.

50978090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29735209 + 21242881 = 5453^2 + 4609^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50978093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34187 + ... + 35646.

Almost surely, 2^50978090 is an apocalyptic number.

50978090 is a deficient number, since it is larger than the sum of its proper divisors (42040798).

50978090 is a wasteful number, since it uses less digits than its factorization.

50978090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69913.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 50978090 is about 7139.8942569201. The cubic root of 50978090 is about 370.7898636361.

The spelling of 50978090 in words is "fifty million, nine hundred seventy-eight thousand, ninety".