10550981 has 16 divisors (see below), whose sum is σ = 12512640. Its totient is φ = 8709120.

The previous prime is 10550971. The next prime is 10550993. The reversal of 10550981 is 18905501.

It is a de Polignac number, because none of the positive numbers 2^k-10550981 is a prime.

It is a super-2 number, since 2×10550981² = 222646400124722, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10550921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27650 + ... + 28028.

It is an arithmetic number, because the mean of its divisors is an integer number (782040).

Almost surely, 2^10550981 is an apocalyptic number.

It is an amenable number.

10550981 is a deficient number, since it is larger than the sum of its proper divisors (1961659).

10550981 is an equidigital number, since it uses as much as digits as its factorization.

10550981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 10550981 is about 3248.2273627319. The cubic root of 10550981 is about 219.3297853802.

The spelling of 10550981 in words is "ten million, five hundred fifty thousand, nine hundred eighty-one".