51869673 has 16 divisors (see below), whose sum is σ = 78148800. Its totient is φ = 33992640.

The previous prime is 51869651. The next prime is 51869681. The reversal of 51869673 is 37696815.

It is a happy number.

51869673 is a `hidden beast` number, since 518 + 69 + 6 + 73 = 666.

It is not a de Polignac number, because 51869673 - 2¹² = 51865577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51869173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14688 + ... + 17873.

It is an arithmetic number, because the mean of its divisors is an integer number (4884300).

Almost surely, 2^51869673 is an apocalyptic number.

It is an amenable number.

51869673 is a deficient number, since it is larger than the sum of its proper divisors (26279127).

51869673 is a wasteful number, since it uses less digits than its factorization.

51869673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32629 (or 32623 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 51869673 is about 7202.0603302111. The cubic root of 51869673 is about 372.9390298224.

The spelling of 51869673 in words is "fifty-one million, eight hundred sixty-nine thousand, six hundred seventy-three".