55685186597 has 2 divisors, whose sum is σ = 55685186598. Its totient is φ = 55685186596.

The previous prime is 55685186573. The next prime is 55685186659. The reversal of 55685186597 is 79568158655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28889460961 + 26795725636 = 169969^2 + 163694^2 .

It is a cyclic number.

It is not a de Polignac number, because 55685186597 - 2¹⁰ = 55685185573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55685186497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27842593298 + 27842593299.

It is an arithmetic number, because the mean of its divisors is an integer number (27842593299).

Almost surely, 2^55685186597 is an apocalyptic number.

It is an amenable number.

55685186597 is a deficient number, since it is larger than the sum of its proper divisors (1).

55685186597 is an equidigital number, since it uses as much as digits as its factorization.

55685186597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720000, while the sum is 65.

The spelling of 55685186597 in words is "fifty-five billion, six hundred eighty-five million, one hundred eighty-six thousand, five hundred ninety-seven".