21441034025055 has 24 divisors (see below), whose sum is σ = 37215579334752. Its totient is φ = 11419488805824.

The previous prime is 21441034024987. The next prime is 21441034025101. The reversal of 21441034025055 is 55052043014412.

21441034025055 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 10 + 340 + 250 + 55 = 666.

It is not a de Polignac number, because 21441034025055 - 2²⁰ = 21441032976479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327661524 + ... + 327726953.

It is an arithmetic number, because the mean of its divisors is an integer number (1550649138948).

Almost surely, 2^{21441034025055} is an apocalyptic number.

21441034025055 is a deficient number, since it is larger than the sum of its proper divisors (15774545309697).

21441034025055 is a wasteful number, since it uses less digits than its factorization.

21441034025055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655389215 (or 655389212 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 21441034025055 its reverse (55052043014412), we get a palindrome (76493077039467).

The spelling of 21441034025055 in words is "twenty-one trillion, four hundred forty-one billion, thirty-four million, twenty-five thousand, fifty-five".