55635563 has 8 divisors (see below), whose sum is σ = 56819568. Its totient is φ = 54463104.

The previous prime is 55635521. The next prime is 55635581. The reversal of 55635563 is 36553655.

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 55635563 - 2⁶ = 55635499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55635763) 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, 7220 + ... + 12782.

It is an arithmetic number, because the mean of its divisors is an integer number (7102446).

Almost surely, 2^55635563 is an apocalyptic number.

55635563 is a deficient number, since it is larger than the sum of its proper divisors (1184005).

55635563 is a wasteful number, since it uses less digits than its factorization.

55635563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773.

The product of its digits is 202500, while the sum is 38.

The square root of 55635563 is about 7458.9250566017. The cubic root of 55635563 is about 381.7544976466.

The spelling of 55635563 in words is "fifty-five million, six hundred thirty-five thousand, five hundred sixty-three".