55255307 has 2 divisors, whose sum is σ = 55255308. Its totient is φ = 55255306.

The previous prime is 55255303. The next prime is 55255349. The reversal of 55255307 is 70355255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55255307 - 2² = 55255303 is a prime.

It is not a weakly prime, because it can be changed into another prime (55255303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27627653 + 27627654.

It is an arithmetic number, because the mean of its divisors is an integer number (27627654).

Almost surely, 2^55255307 is an apocalyptic number.

55255307 is a deficient number, since it is larger than the sum of its proper divisors (1).

55255307 is an equidigital number, since it uses as much as digits as its factorization.

55255307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 55255307 is about 7433.3913525389. The cubic root of 55255307 is about 380.8827745164.

The spelling of 55255307 in words is "fifty-five million, two hundred fifty-five thousand, three hundred seven".