10550591 has 4 divisors (see below), whose sum is σ = 11171232. Its totient is φ = 9929952.

The previous prime is 10550563. The next prime is 10550597. The reversal of 10550591 is 19505501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19505501 = 2897 ⋅6733.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10550591 is a prime.

It is a super-2 number, since 2×10550591² = 222629940898562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10550591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10550597) 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, 310295 + ... + 310328.

It is an arithmetic number, because the mean of its divisors is an integer number (2792808).

Almost surely, 2^10550591 is an apocalyptic number.

10550591 is a deficient number, since it is larger than the sum of its proper divisors (620641).

10550591 is an equidigital number, since it uses as much as digits as its factorization.

10550591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620640.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 10550591 is about 3248.1673294336. The cubic root of 10550591 is about 219.3270829563.

The spelling of 10550591 in words is "ten million, five hundred fifty thousand, five hundred ninety-one".