23155444453 has 2 divisors, whose sum is σ = 23155444454. Its totient is φ = 23155444452.

The previous prime is 23155444447. The next prime is 23155444463. The reversal of 23155444453 is 35444455132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19364948964 + 3790495489 = 139158^2 + 61567^2 .

It is a cyclic number.

It is not a de Polignac number, because 23155444453 - 2²⁵ = 23121890021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23155444463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11577722226 + 11577722227.

It is an arithmetic number, because the mean of its divisors is an integer number (11577722227).

Almost surely, 2^23155444453 is an apocalyptic number.

It is an amenable number.

23155444453 is a deficient number, since it is larger than the sum of its proper divisors (1).

23155444453 is an equidigital number, since it uses as much as digits as its factorization.

23155444453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 40.

Adding to 23155444453 its reverse (35444455132), we get a palindrome (58599899585).

The spelling of 23155444453 in words is "twenty-three billion, one hundred fifty-five million, four hundred forty-four thousand, four hundred fifty-three".