55858097593 has 2 divisors, whose sum is σ = 55858097594. Its totient is φ = 55858097592.

The previous prime is 55858097591. The next prime is 55858097609. The reversal of 55858097593 is 39579085855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51276432249 + 4581665344 = 226443^2 + 67688^2 .

It is a cyclic number.

It is not a de Polignac number, because 55858097593 - 2¹ = 55858097591 is a prime.

It is a super-2 number, since 2×55858097593² (a number of 22 digits) contains 22 as substring.

Together with 55858097591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55858097591) 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, 27929048796 + 27929048797.

It is an arithmetic number, because the mean of its divisors is an integer number (27929048797).

Almost surely, 2^55858097593 is an apocalyptic number.

It is an amenable number.

55858097593 is a deficient number, since it is larger than the sum of its proper divisors (1).

55858097593 is an equidigital number, since it uses as much as digits as its factorization.

55858097593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040000, while the sum is 64.

The spelling of 55858097593 in words is "fifty-five billion, eight hundred fifty-eight million, ninety-seven thousand, five hundred ninety-three".