55066607 has 2 divisors, whose sum is σ = 55066608. Its totient is φ = 55066606.

The previous prime is 55066603. The next prime is 55066631. The reversal of 55066607 is 70666055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55066607 - 2² = 55066603 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55066603) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27533303 + 27533304.

It is an arithmetic number, because the mean of its divisors is an integer number (27533304).

Almost surely, 2^55066607 is an apocalyptic number.

55066607 is a deficient number, since it is larger than the sum of its proper divisors (1).

55066607 is an equidigital number, since it uses as much as digits as its factorization.

55066607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 55066607 is about 7420.6877713592. The cubic root of 55066607 is about 380.4487012702.

The spelling of 55066607 in words is "fifty-five million, sixty-six thousand, six hundred seven".