21532504054201 has 24 divisors (see below), whose sum is σ = 25461033782400. Its totient is φ = 18152159306400.

The previous prime is 21532504054183. The next prime is 21532504054223. The reversal of 21532504054201 is 10245040523512.

It is a happy number.

It is not a de Polignac number, because 21532504054201 - 2⁵ = 21532504054169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21532504054241) 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 23 ways as a sum of consecutive naturals, for example, 31944666 + ... + 32611756.

It is an arithmetic number, because the mean of its divisors is an integer number (1060876407600).

Almost surely, 2^{21532504054201} is an apocalyptic number.

It is an amenable number.

21532504054201 is a deficient number, since it is larger than the sum of its proper divisors (3928529728199).

21532504054201 is a wasteful number, since it uses less digits than its factorization.

21532504054201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677965 (or 677958 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 21532504054201 its reverse (10245040523512), we get a palindrome (31777544577713).

The spelling of 21532504054201 in words is "twenty-one trillion, five hundred thirty-two billion, five hundred four million, fifty-four thousand, two hundred one".