51573893 has 16 divisors (see below), whose sum is σ = 61133184. Its totient is φ = 42586560.

The previous prime is 51573881. The next prime is 51573901. The reversal of 51573893 is 39837515.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51573893 - 2⁴ = 51573877 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51573893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51573593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26783 + ... + 28643.

It is an arithmetic number, because the mean of its divisors is an integer number (3820824).

Almost surely, 2^51573893 is an apocalyptic number.

It is an amenable number.

51573893 is a deficient number, since it is larger than the sum of its proper divisors (9559291).

51573893 is a wasteful number, since it uses less digits than its factorization.

51573893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012.

The product of its digits is 113400, while the sum is 41.

The square root of 51573893 is about 7181.4965710498. The cubic root of 51573893 is about 372.2287994910.

The spelling of 51573893 in words is "fifty-one million, five hundred seventy-three thousand, eight hundred ninety-three".