51323393 has 8 divisors (see below), whose sum is σ = 56061120. Its totient is φ = 46597680.

The previous prime is 51323353. The next prime is 51323399. The reversal of 51323393 is 39332315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51323393 - 2⁸ = 51323137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51323399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7571 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (7007640).

Almost surely, 2^51323393 is an apocalyptic number.

It is an amenable number.

51323393 is a deficient number, since it is larger than the sum of its proper divisors (4737727).

51323393 is a wasteful number, since it uses less digits than its factorization.

51323393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007.

The product of its digits is 7290, while the sum is 29.

The square root of 51323393 is about 7164.0346872415. The cubic root of 51323393 is about 371.6251692315.

The spelling of 51323393 in words is "fifty-one million, three hundred twenty-three thousand, three hundred ninety-three".