51706573 has 4 divisors (see below), whose sum is σ = 52189920. Its totient is φ = 51223228.

The previous prime is 51706561. The next prime is 51706579. The reversal of 51706573 is 37560715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51706573 - 2⁵ = 51706541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51706579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241513 + ... + 241726.

It is an arithmetic number, because the mean of its divisors is an integer number (13047480).

Almost surely, 2^51706573 is an apocalyptic number.

It is an amenable number.

51706573 is a deficient number, since it is larger than the sum of its proper divisors (483347).

51706573 is a wasteful number, since it uses less digits than its factorization.

51706573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483346.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 51706573 is about 7190.7282663163. The cubic root of 51706573 is about 372.5477271699.

The spelling of 51706573 in words is "fifty-one million, seven hundred six thousand, five hundred seventy-three".