55584563 has 2 divisors, whose sum is σ = 55584564. Its totient is φ = 55584562.

The previous prime is 55584559. The next prime is 55584593. The reversal of 55584563 is 36548555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55584563 - 2² = 55584559 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55584563.

It is not a weakly prime, because it can be changed into another prime (55584553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27792281 + 27792282.

It is an arithmetic number, because the mean of its divisors is an integer number (27792282).

Almost surely, 2^55584563 is an apocalyptic number.

55584563 is a deficient number, since it is larger than the sum of its proper divisors (1).

55584563 is an equidigital number, since it uses as much as digits as its factorization.

55584563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360000, while the sum is 41.

The square root of 55584563 is about 7455.5055495922. The cubic root of 55584563 is about 381.6378130990.

The spelling of 55584563 in words is "fifty-five million, five hundred eighty-four thousand, five hundred sixty-three".