55601263 has 2 divisors, whose sum is σ = 55601264. Its totient is φ = 55601262.

The previous prime is 55601261. The next prime is 55601267. The reversal of 55601263 is 36210655.

55601263 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 55601263 - 2¹ = 55601261 is a prime.

Together with 55601261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55601261) 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, 27800631 + 27800632.

It is an arithmetic number, because the mean of its divisors is an integer number (27800632).

Almost surely, 2^55601263 is an apocalyptic number.

55601263 is a deficient number, since it is larger than the sum of its proper divisors (1).

55601263 is an equidigital number, since it uses as much as digits as its factorization.

55601263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 55601263 is about 7456.6254431881. The cubic root of 55601263 is about 381.6760294248.

The spelling of 55601263 in words is "fifty-five million, six hundred one thousand, two hundred sixty-three".