51007085 has 8 divisors (see below), whose sum is σ = 63319320. Its totient is φ = 39398464.

The previous prime is 51007063. The next prime is 51007087. The reversal of 51007085 is 58070015.

51007085 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 11744329 + 39262756 = 3427^2 + 6266^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51007085 - 2¹⁰ = 51006061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51007087) 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, 175742 + ... + 176031.

It is an arithmetic number, because the mean of its divisors is an integer number (7914915).

Almost surely, 2^51007085 is an apocalyptic number.

It is an amenable number.

51007085 is a deficient number, since it is larger than the sum of its proper divisors (12312235).

51007085 is a wasteful number, since it uses less digits than its factorization.

51007085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351807.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 51007085 is about 7141.9244605358. The cubic root of 51007085 is about 370.8601488275.

The spelling of 51007085 in words is "fifty-one million, seven thousand, eighty-five".