55533563 has 2 divisors, whose sum is σ = 55533564. Its totient is φ = 55533562.

The previous prime is 55533547. The next prime is 55533581. The reversal of 55533563 is 36533555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55533563 - 2⁴ = 55533547 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55533593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27766781 + 27766782.

It is an arithmetic number, because the mean of its divisors is an integer number (27766782).

Almost surely, 2^55533563 is an apocalyptic number.

55533563 is a deficient number, since it is larger than the sum of its proper divisors (1).

55533563 is an equidigital number, since it uses as much as digits as its factorization.

55533563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 101250, while the sum is 35.

The square root of 55533563 is about 7452.0844734879. The cubic root of 55533563 is about 381.5210571558.

The spelling of 55533563 in words is "fifty-five million, five hundred thirty-three thousand, five hundred sixty-three".