51864463 has 8 divisors (see below), whose sum is σ = 59351040. Its totient is φ = 44397240.

The previous prime is 51864443. The next prime is 51864469. The reversal of 51864463 is 36446815.

It is a happy number.

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 51864463 - 2⁵ = 51864431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51864469) 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, 1458 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (7418880).

Almost surely, 2^51864463 is an apocalyptic number.

51864463 is a deficient number, since it is larger than the sum of its proper divisors (7486577).

51864463 is an equidigital number, since it uses as much as digits as its factorization.

51864463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9677.

The product of its digits is 69120, while the sum is 37.

The square root of 51864463 is about 7201.6986190759. The cubic root of 51864463 is about 372.9265429022.

The spelling of 51864463 in words is "fifty-one million, eight hundred sixty-four thousand, four hundred sixty-three".