21552511425323 has 16 divisors (see below), whose sum is σ = 21807766396416. Its totient is φ = 21298177091520.

The previous prime is 21552511425317. The next prime is 21552511425443. The reversal of 21552511425323 is 32352411525512.

It is a cyclic number.

It is not a de Polignac number, because 21552511425323 - 2⁶ = 21552511425259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21552511425623) 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 in 15 ways as a sum of consecutive naturals, for example, 124244936 + ... + 124418282.

It is an arithmetic number, because the mean of its divisors is an integer number (1362985399776).

Almost surely, 2^{21552511425323} is an apocalyptic number.

21552511425323 is a deficient number, since it is larger than the sum of its proper divisors (255254971093).

21552511425323 is a wasteful number, since it uses less digits than its factorization.

21552511425323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175994.

The product of its digits is 360000, while the sum is 41.

The spelling of 21552511425323 in words is "twenty-one trillion, five hundred fifty-two billion, five hundred eleven million, four hundred twenty-five thousand, three hundred twenty-three".