21060244053 has 24 divisors (see below), whose sum is σ = 32218263168. Its totient is φ = 13741428384.

The previous prime is 21060244039. The next prime is 21060244057. The reversal of 21060244053 is 35044206012.

21060244053 is a `hidden beast` number, since 2 + 1 + 0 + 602 + 4 + 4 + 0 + 53 = 666.

It is not a de Polignac number, because 21060244053 - 2⁵ = 21060244021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21060244057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 910576 + ... + 933417.

It is an arithmetic number, because the mean of its divisors is an integer number (1342427632).

Almost surely, 2^21060244053 is an apocalyptic number.

It is an amenable number.

21060244053 is a deficient number, since it is larger than the sum of its proper divisors (11158019115).

21060244053 is an equidigital number, since it uses as much as digits as its factorization.

21060244053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844055 (or 1844043 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 21060244053 in words is "twenty-one billion, sixty million, two hundred forty-four thousand, fifty-three".