2278432553 has 4 divisors (see below), whose sum is σ = 2278543188. Its totient is φ = 2278321920.

The previous prime is 2278432547. The next prime is 2278432567. The reversal of 2278432553 is 3552348722.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1290461929 + 987970624 = 35923^2 + 31432^2 .

It is a cyclic number.

It is not a de Polignac number, because 2278432553 - 2¹⁸ = 2278170409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2278432553.

It is not an unprimeable number, because it can be changed into a prime (2278432153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14276 + ... + 68997.

It is an arithmetic number, because the mean of its divisors is an integer number (569635797).

Almost surely, 2^2278432553 is an apocalyptic number.

It is an amenable number.

2278432553 is a deficient number, since it is larger than the sum of its proper divisors (110635).

2278432553 is an equidigital number, since it uses as much as digits as its factorization.

2278432553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110634.

The product of its digits is 403200, while the sum is 41.

The square root of 2278432553 is about 47732.9294407959. The cubic root of 2278432553 is about 1315.8671920698.

The spelling of 2278432553 in words is "two billion, two hundred seventy-eight million, four hundred thirty-two thousand, five hundred fifty-three".