55963307 has 2 divisors, whose sum is σ = 55963308. Its totient is φ = 55963306.

The previous prime is 55963241. The next prime is 55963309. The reversal of 55963307 is 70336955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55963307 - 2⁸ = 55963051 is a prime.

Together with 55963309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55963309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27981653 + 27981654.

It is an arithmetic number, because the mean of its divisors is an integer number (27981654).

Almost surely, 2^55963307 is an apocalyptic number.

55963307 is a deficient number, since it is larger than the sum of its proper divisors (1).

55963307 is an equidigital number, since it uses as much as digits as its factorization.

55963307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85050, while the sum is 38.

The square root of 55963307 is about 7480.8627176282. The cubic root of 55963307 is about 382.5026573640.

The spelling of 55963307 in words is "fifty-five million, nine hundred sixty-three thousand, three hundred seven".