21532424100553 has 8 divisors (see below), whose sum is σ = 21675228436160. Its totient is φ = 21389622469200.

The previous prime is 21532424100541. The next prime is 21532424100571. The reversal of 21532424100553 is 35500142423512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21532424100553 - 2⁵ = 21532424100521 is a prime.

It is a super-3 number, since 3×21532424100553³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21592424100553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16793326 + ... + 18029992.

It is an arithmetic number, because the mean of its divisors is an integer number (2709403554520).

Almost surely, 2^{21532424100553} is an apocalyptic number.

It is an amenable number.

21532424100553 is a deficient number, since it is larger than the sum of its proper divisors (142804335607).

21532424100553 is a wasteful number, since it uses less digits than its factorization.

21532424100553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352127.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 21532424100553 in words is "twenty-one trillion, five hundred thirty-two billion, four hundred twenty-four million, one hundred thousand, five hundred fifty-three".