10521533225 has 12 divisors (see below), whose sum is σ = 14910515904. Its totient is φ = 7214765520.

The previous prime is 10521533221. The next prime is 10521533227. The reversal of 10521533225 is 52233512501.

10521533225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10521533225 - 2² = 10521533221 is a prime.

It is a super-2 number, since 2×10521533225² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10521533221) 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 11 ways as a sum of consecutive naturals, for example, 30061349 + ... + 30061698.

It is an arithmetic number, because the mean of its divisors is an integer number (1242542992).

Almost surely, 2^10521533225 is an apocalyptic number.

It is an amenable number.

10521533225 is a deficient number, since it is larger than the sum of its proper divisors (4388982679).

10521533225 is an equidigital number, since it uses as much as digits as its factorization.

10521533225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60123064 (or 60123059 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 10521533225 in words is "ten billion, five hundred twenty-one million, five hundred thirty-three thousand, two hundred twenty-five".