2194266553 has 2 divisors, whose sum is σ = 2194266554. Its totient is φ = 2194266552.

The previous prime is 2194266523. The next prime is 2194266559. The reversal of 2194266553 is 3556624912.

2194266553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1596561849 + 597704704 = 39957^2 + 24448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2194266553 is a prime.

It is a super-2 number, since 2×2194266553² = 9629611411229003618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2194266559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097133276 + 1097133277.

It is an arithmetic number, because the mean of its divisors is an integer number (1097133277).

Almost surely, 2^2194266553 is an apocalyptic number.

It is an amenable number.

2194266553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194266553 is an equidigital number, since it uses as much as digits as its factorization.

2194266553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 2194266553 is about 46842.9989753005. The cubic root of 2194266553 is about 1299.4606348302.

The spelling of 2194266553 in words is "two billion, one hundred ninety-four million, two hundred sixty-six thousand, five hundred fifty-three".