10521802 has 4 divisors (see below), whose sum is σ = 15782706. Its totient is φ = 5260900.

The previous prime is 10521779. The next prime is 10521821. The reversal of 10521802 is 20812501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8696601 + 1825201 = 2949^2 + 1351^2 .

It is a super-2 number, since 2×10521802² = 221416634654408, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 10521802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630449 + ... + 2630452.

Almost surely, 2^10521802 is an apocalyptic number.

10521802 is a deficient number, since it is larger than the sum of its proper divisors (5260904).

10521802 is an equidigital number, since it uses as much as digits as its factorization.

10521802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260903.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 10521802 is about 3243.7327263509. The cubic root of 10521802 is about 219.1274113858.

The spelling of 10521802 in words is "ten million, five hundred twenty-one thousand, eight hundred two".