55247663 has 2 divisors, whose sum is σ = 55247664. Its totient is φ = 55247662.

The previous prime is 55247657. The next prime is 55247681. The reversal of 55247663 is 36674255.

55247663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55247663 - 2²⁰ = 54199087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55247653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27623831 + 27623832.

It is an arithmetic number, because the mean of its divisors is an integer number (27623832).

Almost surely, 2^55247663 is an apocalyptic number.

55247663 is a deficient number, since it is larger than the sum of its proper divisors (1).

55247663 is an equidigital number, since it uses as much as digits as its factorization.

55247663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 38.

The square root of 55247663 is about 7432.8771683649. The cubic root of 55247663 is about 380.8652099761.

The spelling of 55247663 in words is "fifty-five million, two hundred forty-seven thousand, six hundred sixty-three".