51495185 has 24 divisors (see below), whose sum is σ = 73021248. Its totient is φ = 34149600.

The previous prime is 51495181. The next prime is 51495211. The reversal of 51495185 is 58159415.

It is not a de Polignac number, because 51495185 - 2² = 51495181 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51495181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32870 + ... + 34400.

It is an arithmetic number, because the mean of its divisors is an integer number (3042552).

Almost surely, 2^51495185 is an apocalyptic number.

It is an amenable number.

51495185 is a deficient number, since it is larger than the sum of its proper divisors (21526063).

51495185 is a wasteful number, since it uses less digits than its factorization.

51495185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605 (or 1574 counting only the distinct ones).

The product of its digits is 36000, while the sum is 38.

The square root of 51495185 is about 7176.0145624155. The cubic root of 51495185 is about 372.0393476898.

The spelling of 51495185 in words is "fifty-one million, four hundred ninety-five thousand, one hundred eighty-five".