10551021 has 8 divisors (see below), whose sum is σ = 15150240. Its totient is φ = 6492912.

The previous prime is 10551019. The next prime is 10551049. The reversal of 10551021 is 12015501.

10551021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10551021 - 2¹ = 10551019 is a prime.

It is a super-2 number, since 2×10551021² = 222648088284882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10551001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135231 + ... + 135308.

It is an arithmetic number, because the mean of its divisors is an integer number (1893780).

Almost surely, 2^10551021 is an apocalyptic number.

It is an amenable number.

10551021 is a deficient number, since it is larger than the sum of its proper divisors (4599219).

10551021 is a wasteful number, since it uses less digits than its factorization.

10551021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270555.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 10551021 is about 3248.2335199305. The cubic root of 10551021 is about 219.3300625482.

Adding to 10551021 its reverse (12015501), we get a palindrome (22566522).

The spelling of 10551021 in words is "ten million, five hundred fifty-one thousand, twenty-one".