10521801 has 24 divisors (see below), whose sum is σ = 16440320. Its totient is φ = 6461856.

The previous prime is 10521779. The next prime is 10521821. The reversal of 10521801 is 10812501.

It is not a de Polignac number, because 10521801 - 2⁷ = 10521673 is a prime.

It is a super-2 number, since 2×10521801² = 221416592567202, which contains 22 as substring.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (10521821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5496 + ... + 7158.

Almost surely, 2^10521801 is an apocalyptic number.

It is an amenable number.

10521801 is a deficient number, since it is larger than the sum of its proper divisors (5918519).

10521801 is a wasteful number, since it uses less digits than its factorization.

10521801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 10521801 is about 3243.7325722075. The cubic root of 10521801 is about 219.1274044437.

The spelling of 10521801 in words is "ten million, five hundred twenty-one thousand, eight hundred one".