55357355597 has 2 divisors, whose sum is σ = 55357355598. Its totient is φ = 55357355596.

The previous prime is 55357355591. The next prime is 55357355621. The reversal of 55357355597 is 79555375355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35256070756 + 20101284841 = 187766^2 + 141779^2 .

It is a cyclic number.

It is not a de Polignac number, because 55357355597 - 2⁸ = 55357355341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55357355591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27678677798 + 27678677799.

It is an arithmetic number, because the mean of its divisors is an integer number (27678677799).

Almost surely, 2^55357355597 is an apocalyptic number.

It is an amenable number.

55357355597 is a deficient number, since it is larger than the sum of its proper divisors (1).

55357355597 is an equidigital number, since it uses as much as digits as its factorization.

55357355597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62015625, while the sum is 59.

The spelling of 55357355597 in words is "fifty-five billion, three hundred fifty-seven million, three hundred fifty-five thousand, five hundred ninety-seven".