21525361030 has 8 divisors (see below), whose sum is σ = 38745649872. Its totient is φ = 8610144408.

The previous prime is 21525361001. The next prime is 21525361147. The reversal of 21525361030 is 3016352512.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21525361030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076268042 + ... + 1076268061.

It is an arithmetic number, because the mean of its divisors is an integer number (4843206234).

Almost surely, 2^21525361030 is an apocalyptic number.

21525361030 is a deficient number, since it is larger than the sum of its proper divisors (17220288842).

21525361030 is a wasteful number, since it uses less digits than its factorization.

21525361030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152536110.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 21525361030 in words is "twenty-one billion, five hundred twenty-five million, three hundred sixty-one thousand, thirty".