21014276253 has 16 divisors (see below), whose sum is σ = 28095984000. Its totient is φ = 13971077120.

The previous prime is 21014276183. The next prime is 21014276273. The reversal of 21014276253 is 35267241012.

It is a cyclic number.

It is not a de Polignac number, because 21014276253 - 2²¹ = 21012179101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014276273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4295833 + ... + 4300721.

It is an arithmetic number, because the mean of its divisors is an integer number (1755999000).

Almost surely, 2^21014276253 is an apocalyptic number.

It is an amenable number.

21014276253 is a deficient number, since it is larger than the sum of its proper divisors (7081707747).

21014276253 is a wasteful number, since it uses less digits than its factorization.

21014276253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8532.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 21014276253 in words is "twenty-one billion, fourteen million, two hundred seventy-six thousand, two hundred fifty-three".