10521552250 has 32 divisors (see below), whose sum is σ = 21486928320. Its totient is φ = 3826018000.

The previous prime is 10521552191. The next prime is 10521552299. The reversal of 10521552250 is 5225512501.

It is a super-2 number, since 2×10521552250² (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 15 ways as a sum of consecutive naturals, for example, 1910260 + ... + 1915759.

It is an arithmetic number, because the mean of its divisors is an integer number (671466510).

Almost surely, 2^10521552250 is an apocalyptic number.

10521552250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10521552250 is an abundant number, since it is smaller than the sum of its proper divisors (10965376070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10521552250 is a wasteful number, since it uses less digits than its factorization.

10521552250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826047 (or 3826037 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The spelling of 10521552250 in words is "ten billion, five hundred twenty-one million, five hundred fifty-two thousand, two hundred fifty".