55605607 has 2 divisors, whose sum is σ = 55605608. Its totient is φ = 55605606.

The previous prime is 55605593. The next prime is 55605611. The reversal of 55605607 is 70650655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55605607 - 2⁷ = 55605479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55605637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27802803 + 27802804.

It is an arithmetic number, because the mean of its divisors is an integer number (27802804).

Almost surely, 2^55605607 is an apocalyptic number.

55605607 is a deficient number, since it is larger than the sum of its proper divisors (1).

55605607 is an equidigital number, since it uses as much as digits as its factorization.

55605607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 55605607 is about 7456.9167220776. The cubic root of 55605607 is about 381.6859689922.

The spelling of 55605607 in words is "fifty-five million, six hundred five thousand, six hundred seven".