51046090 has 16 divisors (see below), whose sum is σ = 95051880. Its totient is φ = 19714240.

The previous prime is 51046067. The next prime is 51046109. The reversal of 51046090 is 9064015.

51046090 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 47348161 + 3697929 = 6881^2 + 1923^2 .

It is an unprimeable number.

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, 87721 + ... + 88300.

Almost surely, 2^51046090 is an apocalyptic number.

51046090 is a deficient number, since it is larger than the sum of its proper divisors (44005790).

51046090 is a wasteful number, since it uses less digits than its factorization.

51046090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176057.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 51046090 is about 7144.6546452575. The cubic root of 51046090 is about 370.9546567078.

The spelling of 51046090 in words is "fifty-one million, forty-six thousand, ninety".