51845193 has 12 divisors (see below), whose sum is σ = 75428080. Its totient is φ = 34313976.

The previous prime is 51845179. The next prime is 51845267. The reversal of 51845193 is 39154815.

51845193 is a `hidden beast` number, since 518 + 4 + 51 + 93 = 666.

It is not a de Polignac number, because 51845193 - 2⁵ = 51845161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51845173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19471 + ... + 21972.

Almost surely, 2^51845193 is an apocalyptic number.

It is an amenable number.

51845193 is a deficient number, since it is larger than the sum of its proper divisors (23582887).

51845193 is a wasteful number, since it uses less digits than its factorization.

51845193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41588 (or 41585 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 51845193 is about 7200.3606159692. The cubic root of 51845193 is about 372.8803508068.

The spelling of 51845193 in words is "fifty-one million, eight hundred forty-five thousand, one hundred ninety-three".