14511321553 has 2 divisors, whose sum is σ = 14511321554. Its totient is φ = 14511321552.

The previous prime is 14511321521. The next prime is 14511321589. The reversal of 14511321553 is 35512311541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13323623184 + 1187698369 = 115428^2 + 34463^2 .

It is a cyclic number.

It is not a de Polignac number, because 14511321553 - 2⁵ = 14511321521 is a prime.

It is not a weakly prime, because it can be changed into another prime (14511325553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7255660776 + 7255660777.

It is an arithmetic number, because the mean of its divisors is an integer number (7255660777).

Almost surely, 2^14511321553 is an apocalyptic number.

It is an amenable number.

14511321553 is a deficient number, since it is larger than the sum of its proper divisors (1).

14511321553 is an equidigital number, since it uses as much as digits as its factorization.

14511321553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 31.

The spelling of 14511321553 in words is "fourteen billion, five hundred eleven million, three hundred twenty-one thousand, five hundred fifty-three".