55768859 has 8 divisors (see below), whose sum is σ = 58384800. Its totient is φ = 53168896.

The previous prime is 55768849. The next prime is 55768871. The reversal of 55768859 is 95886755.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55768859 is a prime.

It is a super-2 number, since 2×55768859² = 6220331268323762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55768859.

It is not an unprimeable number, because it can be changed into a prime (55768849) 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, 3467 + ... + 11115.

It is an arithmetic number, because the mean of its divisors is an integer number (7298100).

Almost surely, 2^55768859 is an apocalyptic number.

55768859 is a deficient number, since it is larger than the sum of its proper divisors (2615941).

55768859 is a wasteful number, since it uses less digits than its factorization.

55768859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989.

The product of its digits is 3024000, while the sum is 53.

The square root of 55768859 is about 7467.8550467989. The cubic root of 55768859 is about 382.0591335044.

The spelling of 55768859 in words is "fifty-five million, seven hundred sixty-eight thousand, eight hundred fifty-nine".