27433440553 has 2 divisors, whose sum is σ = 27433440554. Its totient is φ = 27433440552.

The previous prime is 27433440521. The next prime is 27433440637. The reversal of 27433440553 is 35504433472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14784614464 + 12648826089 = 121592^2 + 112467^2 .

It is a cyclic number.

It is not a de Polignac number, because 27433440553 - 2⁵ = 27433440521 is a prime.

It is not a weakly prime, because it can be changed into another prime (27433440253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13716720276 + 13716720277.

It is an arithmetic number, because the mean of its divisors is an integer number (13716720277).

Almost surely, 2^27433440553 is an apocalyptic number.

It is an amenable number.

27433440553 is a deficient number, since it is larger than the sum of its proper divisors (1).

27433440553 is an equidigital number, since it uses as much as digits as its factorization.

27433440553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 40.

The spelling of 27433440553 in words is "twenty-seven billion, four hundred thirty-three million, four hundred forty thousand, five hundred fifty-three".