10521004 has 12 divisors (see below), whose sum is σ = 19828144. Its totient is φ = 4855824.

The previous prime is 10521001. The next prime is 10521013. The reversal of 10521004 is 40012501.

It is a super-2 number, since 2×10521004² = 221383050336032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

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 in 3 ways as a sum of consecutive naturals, for example, 101112 + ... + 101215.

Almost surely, 2^10521004 is an apocalyptic number.

It is an amenable number.

10521004 is a deficient number, since it is larger than the sum of its proper divisors (9307140).

10521004 is a wasteful number, since it uses less digits than its factorization.

10521004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202344 (or 202342 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 10521004 is about 3243.6097175832. The cubic root of 10521004 is about 219.1218715205.

Adding to 10521004 its reverse (40012501), we get a palindrome (50533505).

The spelling of 10521004 in words is "ten million, five hundred twenty-one thousand, four".