51360085 has 24 divisors (see below), whose sum is σ = 73457496. Its totient is φ = 34352640.

The previous prime is 51360079. The next prime is 51360119. The reversal of 51360085 is 58006315.

It can be written as a sum of positive squares in 4 ways, for example, as 4588164 + 46771921 = 2142^2 + 6839^2 .

It is not a de Polignac number, because 51360085 - 2⁹ = 51359573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7489 + ... + 12601.

It is an arithmetic number, because the mean of its divisors is an integer number (3060729).

Almost surely, 2^51360085 is an apocalyptic number.

It is an amenable number.

51360085 is a deficient number, since it is larger than the sum of its proper divisors (22097411).

51360085 is a wasteful number, since it uses less digits than its factorization.

51360085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173 (or 5166 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51360085 is about 7166.5950771618. The cubic root of 51360085 is about 371.7137086008.

The spelling of 51360085 in words is "fifty-one million, three hundred sixty thousand, eighty-five".