10521325563 has 16 divisors (see below), whose sum is σ = 16876312320. Its totient is φ = 5695754976.

The previous prime is 10521325561. The next prime is 10521325571. The reversal of 10521325563 is 36552312501.

It is a happy number.

It is not a de Polignac number, because 10521325563 - 2¹ = 10521325561 is a prime.

It is a super-2 number, since 2×10521325563² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10521325561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13184220 + ... + 13185017.

It is an arithmetic number, because the mean of its divisors is an integer number (1054769520).

Almost surely, 2^10521325563 is an apocalyptic number.

10521325563 is a deficient number, since it is larger than the sum of its proper divisors (6354986757).

10521325563 is a wasteful number, since it uses less digits than its factorization.

10521325563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26369266.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 10521325563 in words is "ten billion, five hundred twenty-one million, three hundred twenty-five thousand, five hundred sixty-three".