23255520003553 has 2 divisors, whose sum is σ = 23255520003554. Its totient is φ = 23255520003552.

The previous prime is 23255520003439. The next prime is 23255520003557. The reversal of 23255520003553 is 35530002555232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22588803661824 + 666716341729 = 4752768^2 + 816527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23255520003553 is a prime.

It is not a weakly prime, because it can be changed into another prime (23255520003557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11627760001776 + 11627760001777.

It is an arithmetic number, because the mean of its divisors is an integer number (11627760001777).

Almost surely, 2^{23255520003553} is an apocalyptic number.

It is an amenable number.

23255520003553 is a deficient number, since it is larger than the sum of its proper divisors (1).

23255520003553 is an equidigital number, since it uses as much as digits as its factorization.

23255520003553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675000, while the sum is 40.

Adding to 23255520003553 its reverse (35530002555232), we get a palindrome (58785522558785).

The spelling of 23255520003553 in words is "twenty-three trillion, two hundred fifty-five billion, five hundred twenty million, three thousand, five hundred fifty-three".