21453010010552 has 32 divisors (see below), whose sum is σ = 41006994785280. Its totient is φ = 10518044983680.

The previous prime is 21453010010533. The next prime is 21453010010563. The reversal of 21453010010552 is 25501001035412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13863224 + ... + 15332807.

It is an arithmetic number, because the mean of its divisors is an integer number (1281468587040).

Almost surely, 2^{21453010010552} is an apocalyptic number.

It is an amenable number.

21453010010552 is a deficient number, since it is larger than the sum of its proper divisors (19553984774728).

21453010010552 is a wasteful number, since it uses less digits than its factorization.

21453010010552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29197823 (or 29197819 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 21453010010552 its reverse (25501001035412), we get a palindrome (46954011045964).

The spelling of 21453010010552 in words is "twenty-one trillion, four hundred fifty-three billion, ten million, ten thousand, five hundred fifty-two".