55656673 has 2 divisors, whose sum is σ = 55656674. Its totient is φ = 55656672.

The previous prime is 55656631. The next prime is 55656677. The reversal of 55656673 is 37665655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54420129 + 1236544 = 7377^2 + 1112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55656673 is a prime.

It is not a weakly prime, because it can be changed into another prime (55656677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27828336 + 27828337.

It is an arithmetic number, because the mean of its divisors is an integer number (27828337).

Almost surely, 2^55656673 is an apocalyptic number.

It is an amenable number.

55656673 is a deficient number, since it is larger than the sum of its proper divisors (1).

55656673 is an equidigital number, since it uses as much as digits as its factorization.

55656673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 567000, while the sum is 43.

The square root of 55656673 is about 7460.3400056566. The cubic root of 55656673 is about 381.8027750311.

The spelling of 55656673 in words is "fifty-five million, six hundred fifty-six thousand, six hundred seventy-three".