21114566253 has 48 divisors (see below), whose sum is σ = 35552088000. Its totient is φ = 11933360640.

The previous prime is 21114566251. The next prime is 21114566269. The reversal of 21114566253 is 35266541112.

21114566253 is a `hidden beast` number, since 2 + 11 + 14 + 5 + 6 + 625 + 3 = 666.

It is not a de Polignac number, because 21114566253 - 2¹ = 21114566251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114566251) 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 47 ways as a sum of consecutive naturals, for example, 125898 + ... + 240996.

It is an arithmetic number, because the mean of its divisors is an integer number (740668500).

Almost surely, 2^21114566253 is an apocalyptic number.

It is an amenable number.

21114566253 is a deficient number, since it is larger than the sum of its proper divisors (14437521747).

21114566253 is a wasteful number, since it uses less digits than its factorization.

21114566253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115242 (or 115239 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 21114566253 in words is "twenty-one billion, one hundred fourteen million, five hundred sixty-six thousand, two hundred fifty-three".