51594393 has 16 divisors (see below), whose sum is σ = 71354880. Its totient is φ = 33121536.

The previous prime is 51594373. The next prime is 51594409. The reversal of 51594393 is 39349515.

It is not a de Polignac number, because 51594393 - 2²¹ = 49497241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51594373) 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 15 ways as a sum of consecutive naturals, for example, 52321 + ... + 53297.

It is an arithmetic number, because the mean of its divisors is an integer number (4459680).

Almost surely, 2^51594393 is an apocalyptic number.

It is an amenable number.

51594393 is a deficient number, since it is larger than the sum of its proper divisors (19760487).

51594393 is a wasteful number, since it uses less digits than its factorization.

51594393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616.

The product of its digits is 72900, while the sum is 39.

The square root of 51594393 is about 7182.9237083516. The cubic root of 51594393 is about 372.2781117763.

The spelling of 51594393 in words is "fifty-one million, five hundred ninety-four thousand, three hundred ninety-three".