51573793 has 4 divisors (see below), whose sum is σ = 52195248. Its totient is φ = 50952340.

The previous prime is 51573791. The next prime is 51573829. The reversal of 51573793 is 39737515.

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 51573793 - 2¹ = 51573791 is a prime.

It is a super-2 number, since 2×51573793² = 5319712248813698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51573791) 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 3 ways as a sum of consecutive naturals, for example, 310603 + ... + 310768.

It is an arithmetic number, because the mean of its divisors is an integer number (13048812).

Almost surely, 2^51573793 is an apocalyptic number.

It is an amenable number.

51573793 is a deficient number, since it is larger than the sum of its proper divisors (621455).

51573793 is an equidigital number, since it uses as much as digits as its factorization.

51573793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621454.

The product of its digits is 99225, while the sum is 40.

The square root of 51573793 is about 7181.4896087093. The cubic root of 51573793 is about 372.2285589113.

The spelling of 51573793 in words is "fifty-one million, five hundred seventy-three thousand, seven hundred ninety-three".