51027290 has 16 divisors (see below), whose sum is σ = 92118600. Its totient is φ = 20351040.

The previous prime is 51027259. The next prime is 51027299. The reversal of 51027290 is 9272015.

51027290 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 28398241 + 22629049 = 5329^2 + 4757^2 .

It is not an unprimeable number, because it can be changed into a prime (51027299) 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, 3821 + ... + 10800.

Almost surely, 2^51027290 is an apocalyptic number.

51027290 is a deficient number, since it is larger than the sum of its proper divisors (41091310).

51027290 is a wasteful number, since it uses less digits than its factorization.

51027290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14977.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 51027290 is about 7143.3388551853. The cubic root of 51027290 is about 370.9091109152.

The spelling of 51027290 in words is "fifty-one million, twenty-seven thousand, two hundred ninety".