21552512232033 has 8 divisors (see below), whose sum is σ = 31929647751200. Its totient is φ = 14368341488004.

The previous prime is 21552512231983. The next prime is 21552512232047. The reversal of 21552512232033 is 33023221525512.

21552512232033 is a `hidden beast` number, since 2 + 1 + 5 + 525 + 122 + 3 + 2 + 0 + 3 + 3 = 666.

It is not a de Polignac number, because 21552512232033 - 2⁸ = 21552512231777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21552512232233) 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 7 ways as a sum of consecutive naturals, for example, 399120596863 + ... + 399120596916.

It is an arithmetic number, because the mean of its divisors is an integer number (3991205968900).

Almost surely, 2^{21552512232033} is an apocalyptic number.

It is an amenable number.

21552512232033 is a deficient number, since it is larger than the sum of its proper divisors (10377135519167).

21552512232033 is an equidigital number, since it uses as much as digits as its factorization.

21552512232033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798241193788 (or 798241193782 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 21552512232033 its reverse (33023221525512), we get a palindrome (54575733757545).

The spelling of 21552512232033 in words is "twenty-one trillion, five hundred fifty-two billion, five hundred twelve million, two hundred thirty-two thousand, thirty-three".