51870573 has 12 divisors (see below), whose sum is σ = 75053628. Its totient is φ = 34520640.

The previous prime is 51870571. The next prime is 51870613. The reversal of 51870573 is 37507815.

51870573 is a `hidden beast` number, since 5 + 1 + 87 + 0 + 573 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6953769 + 44916804 = 2637^2 + 6702^2 .

It is not a de Polignac number, because 51870573 - 2¹ = 51870571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51870571) 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 11 ways as a sum of consecutive naturals, for example, 883 + ... + 10223.

It is an arithmetic number, because the mean of its divisors is an integer number (6254469).

Almost surely, 2^51870573 is an apocalyptic number.

It is an amenable number.

51870573 is a deficient number, since it is larger than the sum of its proper divisors (23183055).

51870573 is a wasteful number, since it uses less digits than its factorization.

51870573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9964 (or 9961 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 51870573 is about 7202.1228120603. The cubic root of 51870573 is about 372.9411867873.

The spelling of 51870573 in words is "fifty-one million, eight hundred seventy thousand, five hundred seventy-three".