13553450623 has 2 divisors, whose sum is σ = 13553450624. Its totient is φ = 13553450622.

The previous prime is 13553450609. The next prime is 13553450639. The reversal of 13553450623 is 32605435531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13553450623 - 2⁵ = 13553450591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13553450663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6776725311 + 6776725312.

It is an arithmetic number, because the mean of its divisors is an integer number (6776725312).

Almost surely, 2^13553450623 is an apocalyptic number.

13553450623 is a deficient number, since it is larger than the sum of its proper divisors (1).

13553450623 is an equidigital number, since it uses as much as digits as its factorization.

13553450623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 13553450623 in words is "thirteen billion, five hundred fifty-three million, four hundred fifty thousand, six hundred twenty-three".