51433393 has 8 divisors (see below), whose sum is σ = 57478176. Its totient is φ = 45616800.

The previous prime is 51433379. The next prime is 51433423. The reversal of 51433393 is 39333415.

51433393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51433393 - 2²¹ = 49336241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51433303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56571 + ... + 57472.

It is an arithmetic number, because the mean of its divisors is an integer number (7184772).

Almost surely, 2^51433393 is an apocalyptic number.

It is an amenable number.

51433393 is a deficient number, since it is larger than the sum of its proper divisors (6044783).

51433393 is a wasteful number, since it uses less digits than its factorization.

51433393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114095.

The product of its digits is 14580, while the sum is 31.

The square root of 51433393 is about 7171.7078161342. The cubic root of 51433393 is about 371.8904777401.

The spelling of 51433393 in words is "fifty-one million, four hundred thirty-three thousand, three hundred ninety-three".