21236050053501 has 8 divisors (see below), whose sum is σ = 28317538828320. Its totient is φ = 14155963990512.

The previous prime is 21236050053467. The next prime is 21236050053619. The reversal of 21236050053501 is 10535005063212.

It is a happy number.

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

It is not a de Polignac number, because 21236050053501 - 2⁷ = 21236050053373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21236050053401) 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, 350642631 + ... + 350703188.

It is an arithmetic number, because the mean of its divisors is an integer number (3539692353540).

Almost surely, 2^{21236050053501} is an apocalyptic number.

It is an amenable number.

21236050053501 is a deficient number, since it is larger than the sum of its proper divisors (7081488774819).

21236050053501 is a wasteful number, since it uses less digits than its factorization.

21236050053501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701355915.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 21236050053501 in words is "twenty-one trillion, two hundred thirty-six billion, fifty million, fifty-three thousand, five hundred one".