10521652250 has 16 divisors (see below), whose sum is σ = 19696533480. Its totient is φ = 4208660800.

The previous prime is 10521652237. The next prime is 10521652303. The reversal of 10521652250 is 5225612501.

It can be written as a sum of positive squares in 4 ways, for example, as 3544892521 + 6976759729 = 59539^2 + 83527^2 .

It is a super-2 number, since 2×10521652250² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21043055 + ... + 21043554.

Almost surely, 2^10521652250 is an apocalyptic number.

10521652250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10521652250 is a deficient number, since it is larger than the sum of its proper divisors (9174881230).

10521652250 is an equidigital number, since it uses as much as digits as its factorization.

10521652250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42086626 (or 42086616 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 10521652250 in words is "ten billion, five hundred twenty-one million, six hundred fifty-two thousand, two hundred fifty".