51793393 has 4 divisors (see below), whose sum is σ = 51807808. Its totient is φ = 51778980.

The previous prime is 51793387. The next prime is 51793397. The reversal of 51793393 is 39339715.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51793393 - 2¹⁷ = 51662321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51793397) 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, 3028 + ... + 10618.

It is an arithmetic number, because the mean of its divisors is an integer number (12951952).

Almost surely, 2^51793393 is an apocalyptic number.

It is an amenable number.

51793393 is a deficient number, since it is larger than the sum of its proper divisors (14415).

51793393 is an equidigital number, since it uses as much as digits as its factorization.

51793393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14414.

The product of its digits is 76545, while the sum is 40.

The square root of 51793393 is about 7196.7626749810. The cubic root of 51793393 is about 372.7561243201.

The spelling of 51793393 in words is "fifty-one million, seven hundred ninety-three thousand, three hundred ninety-three".