10521242650 has 12 divisors (see below), whose sum is σ = 19569511422. Its totient is φ = 4208497040.

The previous prime is 10521242581. The next prime is 10521242657. The reversal of 10521242650 is 5624212501.

10521242650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 6885514441 + 3635728209 = 82979^2 + 60297^2 .

It is a super-2 number, since 2×10521242650² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10521242657) 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 5 ways as a sum of consecutive naturals, for example, 105212377 + ... + 105212476.

Almost surely, 2^10521242650 is an apocalyptic number.

10521242650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10521242650 is a deficient number, since it is larger than the sum of its proper divisors (9048268772).

10521242650 is a wasteful number, since it uses less digits than its factorization.

10521242650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210424865 (or 210424860 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 10521242650 in words is "ten billion, five hundred twenty-one million, two hundred forty-two thousand, six hundred fifty".