21052335005 has 32 divisors (see below), whose sum is σ = 27334056960. Its totient is φ = 15473433600.

The previous prime is 21052335001. The next prime is 21052335013. The reversal of 21052335005 is 50053325012.

It is not a de Polignac number, because 21052335005 - 2² = 21052335001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21052335001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17528405 + ... + 17529605.

It is an arithmetic number, because the mean of its divisors is an integer number (854189280).

Almost surely, 2^21052335005 is an apocalyptic number.

It is an amenable number.

21052335005 is a deficient number, since it is larger than the sum of its proper divisors (6281721955).

21052335005 is a wasteful number, since it uses less digits than its factorization.

21052335005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its (nonzero) digits is 4500, while the sum is 26.

The spelling of 21052335005 in words is "twenty-one billion, fifty-two million, three hundred thirty-five thousand, five".