51860085 has 8 divisors (see below), whose sum is σ = 82976160. Its totient is φ = 27658704.

The previous prime is 51860071. The next prime is 51860099. The reversal of 51860085 is 58006815.

It is an interprime number because it is at equal distance from previous prime (51860071) and next prime (51860099).

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

It is not a de Polignac number, because 51860085 - 2¹² = 51855989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1728655 + ... + 1728684.

It is an arithmetic number, because the mean of its divisors is an integer number (10372020).

Almost surely, 2^51860085 is an apocalyptic number.

It is an amenable number.

51860085 is a deficient number, since it is larger than the sum of its proper divisors (31116075).

51860085 is a wasteful number, since it uses less digits than its factorization.

51860085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457347.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 51860085 is about 7201.3946565926. The cubic root of 51860085 is about 372.9160494079.

The spelling of 51860085 in words is "fifty-one million, eight hundred sixty thousand, eighty-five".