55599611 has 2 divisors, whose sum is σ = 55599612. Its totient is φ = 55599610.

The previous prime is 55599553. The next prime is 55599613. The reversal of 55599611 is 11699555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55599611 - 2⁶ = 55599547 is a prime.

It is a Sophie Germain prime.

Together with 55599613, 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 (55599613) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27799805 + 27799806.

It is an arithmetic number, because the mean of its divisors is an integer number (27799806).

Almost surely, 2^55599611 is an apocalyptic number.

55599611 is a deficient number, since it is larger than the sum of its proper divisors (1).

55599611 is an equidigital number, since it uses as much as digits as its factorization.

55599611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60750, while the sum is 41.

The square root of 55599611 is about 7456.5146683957. The cubic root of 55599611 is about 381.6722493246.

The spelling of 55599611 in words is "fifty-five million, five hundred ninety-nine thousand, six hundred eleven".