21052500514 has 8 divisors (see below), whose sum is σ = 32011336620. Its totient is φ = 10382054976.

The previous prime is 21052500503. The next prime is 21052500533. The reversal of 21052500514 is 41500525012.

It can be written as a sum of positive squares in 2 ways, for example, as 20444138289 + 608362225 = 142983^2 + 24665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 72097459 + ... + 72097750.

Almost surely, 2^21052500514 is an apocalyptic number.

21052500514 is a deficient number, since it is larger than the sum of its proper divisors (10958836106).

21052500514 is a wasteful number, since it uses less digits than its factorization.

21052500514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144195284.

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 21052500514 in words is "twenty-one billion, fifty-two million, five hundred thousand, five hundred fourteen".