10521522 has 32 divisors (see below), whose sum is σ = 25508160. Its totient is φ = 3188160.

The previous prime is 10521503. The next prime is 10521559. The reversal of 10521522 is 22512501.

It is a super-2 number, since 2×10521522² = 221404850392968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10521495 and 10521504.

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, 8263 + ... + 9450.

It is an arithmetic number, because the mean of its divisors is an integer number (797130).

Almost surely, 2^10521522 is an apocalyptic number.

10521522 is an abundant number, since it is smaller than the sum of its proper divisors (14986638).

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

10521522 is a wasteful number, since it uses less digits than its factorization.

10521522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17735 (or 17729 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 10521522 is about 3243.6895659110. The cubic root of 10521522 is about 219.1254676053.

The spelling of 10521522 in words is "ten million, five hundred twenty-one thousand, five hundred twenty-two".