55963863 has 6 divisors (see below), whose sum is σ = 80836704. Its totient is φ = 37309236.

The previous prime is 55963861. The next prime is 55963867. The reversal of 55963863 is 36836955.

55963863 is a `hidden beast` number, since 5 + 5 + 9 + 638 + 6 + 3 = 666.

It is not a de Polignac number, because 55963863 - 2¹ = 55963861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55963861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3109095 + ... + 3109112.

It is an arithmetic number, because the mean of its divisors is an integer number (13472784).

Almost surely, 2^55963863 is an apocalyptic number.

55963863 is a deficient number, since it is larger than the sum of its proper divisors (24872841).

55963863 is a wasteful number, since it uses less digits than its factorization.

55963863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218213 (or 6218210 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 55963863 is about 7480.8998790252. The cubic root of 55963863 is about 382.5039240915.

The spelling of 55963863 in words is "fifty-five million, nine hundred sixty-three thousand, eight hundred sixty-three".