2199455597 has 6 divisors (see below), whose sum is σ = 2336446218. Its totient is φ = 2070075584.

The previous prime is 2199455593. The next prime is 2199455623. The reversal of 2199455597 is 7955549912.

It can be written as a sum of positive squares in 3 ways, for example, as 1363898761 + 835556836 = 36931^2 + 28906^2 .

It is not a de Polignac number, because 2199455597 - 2² = 2199455593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199455593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3804998 + ... + 3805575.

It is an arithmetic number, because the mean of its divisors is an integer number (389407703).

Almost surely, 2^2199455597 is an apocalyptic number.

It is an amenable number.

2199455597 is a deficient number, since it is larger than the sum of its proper divisors (136990621).

2199455597 is an equidigital number, since it uses as much as digits as its factorization.

2199455597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7610607 (or 7610590 counting only the distinct ones).

The product of its digits is 5103000, while the sum is 56.

The square root of 2199455597 is about 46898.3538836919. The cubic root of 2199455597 is about 1300.4841583216.

The spelling of 2199455597 in words is "two billion, one hundred ninety-nine million, four hundred fifty-five thousand, five hundred ninety-seven".