55066303 has 2 divisors, whose sum is σ = 55066304. Its totient is φ = 55066302.

The previous prime is 55066279. The next prime is 55066339. The reversal of 55066303 is 30366055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55066303 - 2²⁵ = 21511871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55066343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27533151 + 27533152.

It is an arithmetic number, because the mean of its divisors is an integer number (27533152).

Almost surely, 2^55066303 is an apocalyptic number.

55066303 is a deficient number, since it is larger than the sum of its proper divisors (1).

55066303 is an equidigital number, since it uses as much as digits as its factorization.

55066303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 55066303 is about 7420.6672880544. The cubic root of 55066303 is about 380.4480011688.

The spelling of 55066303 in words is "fifty-five million, sixty-six thousand, three hundred three".