10521002 has 4 divisors (see below), whose sum is σ = 15781506. Its totient is φ = 5260500.

The previous prime is 10521001. The next prime is 10521013. The reversal of 10521002 is 20012501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20012501 = 43 ⋅465407.

It can be written as a sum of positive squares in only one way, i.e., 7284601 + 3236401 = 2699^2 + 1799^2 .

It is a super-2 number, since 2×10521002² = 221382966168008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10521001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630249 + ... + 2630252.

Almost surely, 2^10521002 is an apocalyptic number.

10521002 is a deficient number, since it is larger than the sum of its proper divisors (5260504).

10521002 is an equidigital number, since it uses as much as digits as its factorization.

10521002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260503.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 10521002 is about 3243.6094092847. The cubic root of 10521002 is about 219.1218576358.

Adding to 10521002 its reverse (20012501), we get a palindrome (30533503).

The spelling of 10521002 in words is "ten million, five hundred twenty-one thousand, two".