21529053595 has 16 divisors (see below), whose sum is σ = 30212202240. Its totient is φ = 14419458144.

The previous prime is 21529053593. The next prime is 21529053599. The reversal of 21529053595 is 59535092512.

It is a happy number.

It is not a de Polignac number, because 21529053595 - 2¹ = 21529053593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21529053593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7151005 + ... + 7154014.

It is an arithmetic number, because the mean of its divisors is an integer number (1888262640).

Almost surely, 2^21529053595 is an apocalyptic number.

21529053595 is a deficient number, since it is larger than the sum of its proper divisors (8683148645).

21529053595 is a wasteful number, since it uses less digits than its factorization.

21529053595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14305074.

The product of its (nonzero) digits is 607500, while the sum is 46.

The spelling of 21529053595 in words is "twenty-one billion, five hundred twenty-nine million, fifty-three thousand, five hundred ninety-five".