51085270 has 16 divisors (see below), whose sum is σ = 92055600. Its totient is φ = 20411424.

The previous prime is 51085267. The next prime is 51085291. The reversal of 51085270 is 7258015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8956 + ... + 13504.

It is an arithmetic number, because the mean of its divisors is an integer number (5753475).

Almost surely, 2^51085270 is an apocalyptic number.

51085270 is a deficient number, since it is larger than the sum of its proper divisors (40970330).

51085270 is a wasteful number, since it uses less digits than its factorization.

51085270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5679.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 51085270 is about 7147.3960293242. The cubic root of 51085270 is about 371.0495401523.

The spelling of 51085270 in words is "fifty-one million, eighty-five thousand, two hundred seventy".