8855564297 has 2 divisors, whose sum is σ = 8855564298. Its totient is φ = 8855564296.

The previous prime is 8855564257. The next prime is 8855564357. The reversal of 8855564297 is 7924655588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8276632576 + 578931721 = 90976^2 + 24061^2 .

It is a cyclic number.

It is not a de Polignac number, because 8855564297 - 2¹⁴ = 8855547913 is a prime.

It is a super-2 number, since 2×8855564297² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8855564257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4427782148 + 4427782149.

It is an arithmetic number, because the mean of its divisors is an integer number (4427782149).

Almost surely, 2^8855564297 is an apocalyptic number.

It is an amenable number.

8855564297 is a deficient number, since it is larger than the sum of its proper divisors (1).

8855564297 is an equidigital number, since it uses as much as digits as its factorization.

8855564297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192000, while the sum is 59.

The square root of 8855564297 is about 94104.0078689532. The cubic root of 8855564297 is about 2068.8964141656.

The spelling of 8855564297 in words is "eight billion, eight hundred fifty-five million, five hundred sixty-four thousand, two hundred ninety-seven".