2291418553 has 2 divisors, whose sum is σ = 2291418554. Its totient is φ = 2291418552.

The previous prime is 2291418527. The next prime is 2291418617. The reversal of 2291418553 is 3558141922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1175324089 + 1116094464 = 34283^2 + 33408^2 .

It is a cyclic number.

It is not a de Polignac number, because 2291418553 - 2²¹ = 2289321401 is a prime.

It is a super-2 number, since 2×2291418553² = 10501197970065227618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2298418553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145709276 + 1145709277.

It is an arithmetic number, because the mean of its divisors is an integer number (1145709277).

Almost surely, 2^2291418553 is an apocalyptic number.

It is an amenable number.

2291418553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291418553 is an equidigital number, since it uses as much as digits as its factorization.

2291418553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 2291418553 is about 47868.7638549399. The cubic root of 2291418553 is about 1318.3624000855.

The spelling of 2291418553 in words is "two billion, two hundred ninety-one million, four hundred eighteen thousand, five hundred fifty-three".