21014500053 has 16 divisors (see below), whose sum is σ = 29031877440. Its totient is φ = 13512355584.

The previous prime is 21014500049. The next prime is 21014500063. The reversal of 21014500053 is 35000541012.

It is not a de Polignac number, because 21014500053 - 2² = 21014500049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014500063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110676 + ... + 1129437.

It is an arithmetic number, because the mean of its divisors is an integer number (1814492340).

Almost surely, 2^21014500053 is an apocalyptic number.

It is an amenable number.

21014500053 is a deficient number, since it is larger than the sum of its proper divisors (8017377387).

21014500053 is a wasteful number, since it uses less digits than its factorization.

21014500053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240228.

The product of its (nonzero) digits is 600, while the sum is 21.

The spelling of 21014500053 in words is "twenty-one billion, fourteen million, five hundred thousand, fifty-three".