51495393 has 8 divisors (see below), whose sum is σ = 68762656. Its totient is φ = 34279200.

The previous prime is 51495373. The next prime is 51495403. The reversal of 51495393 is 39359415.

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

It is not a de Polignac number, because 51495393 - 2¹⁰ = 51494369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51495313) 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 7 ways as a sum of consecutive naturals, for example, 10348 + ... + 14493.

It is an arithmetic number, because the mean of its divisors is an integer number (8595332).

Almost surely, 2^51495393 is an apocalyptic number.

It is an amenable number.

51495393 is a deficient number, since it is larger than the sum of its proper divisors (17267263).

51495393 is a wasteful number, since it uses less digits than its factorization.

51495393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25535.

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

The square root of 51495393 is about 7176.0290551251. The cubic root of 51495393 is about 372.0398486044.

The spelling of 51495393 in words is "fifty-one million, four hundred ninety-five thousand, three hundred ninety-three".