21046056300225 has 96 divisors (see below), whose sum is σ = 42213430310400. Its totient is φ = 10195370337600.

The previous prime is 21046056300161. The next prime is 21046056300271. The reversal of 21046056300225 is 52200365064012.

21046056300225 is a `hidden beast` number, since 2 + 10 + 4 + 6 + 0 + 5 + 630 + 0 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 21046056300225 - 2⁶ = 21046056300161 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21046056300225.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7416666 + ... + 9853884.

It is an arithmetic number, because the mean of its divisors is an integer number (439723232400).

Almost surely, 2^{21046056300225} is an apocalyptic number.

21046056300225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21046056300225 is an abundant number, since it is smaller than the sum of its proper divisors (21167374010175).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21046056300225 is a wasteful number, since it uses less digits than its factorization.

21046056300225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438412 (or 2438401 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 21046056300225 in words is "twenty-one trillion, forty-six billion, fifty-six million, three hundred thousand, two hundred twenty-five".