55699597 has 2 divisors, whose sum is σ = 55699598. Its totient is φ = 55699596.

The previous prime is 55699573. The next prime is 55699639. The reversal of 55699597 is 79599655.

55699597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45549001 + 10150596 = 6749^2 + 3186^2 .

It is a cyclic number.

It is not a de Polignac number, because 55699597 - 2¹¹ = 55697549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55699547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27849798 + 27849799.

It is an arithmetic number, because the mean of its divisors is an integer number (27849799).

Almost surely, 2^55699597 is an apocalyptic number.

It is an amenable number.

55699597 is a deficient number, since it is larger than the sum of its proper divisors (1).

55699597 is an equidigital number, since it uses as much as digits as its factorization.

55699597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3827250, while the sum is 55.

The square root of 55699597 is about 7463.2162637833. The cubic root of 55699597 is about 381.9009021747.

The spelling of 55699597 in words is "fifty-five million, six hundred ninety-nine thousand, five hundred ninety-seven".