2259551 has 8 divisors (see below), whose sum is σ = 2645664. Its totient is φ = 1889280.

The previous prime is 2259539. The next prime is 2259557. The reversal of 2259551 is 1559522.

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

It is not a de Polignac number, because 2259551 - 2¹⁰ = 2258527 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259557) 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 7 ways as a sum of consecutive naturals, for example, 3650 + ... + 4223.

It is an arithmetic number, because the mean of its divisors is an integer number (330708).

2^2259551 is an apocalyptic number.

2259551 is a deficient number, since it is larger than the sum of its proper divisors (386113).

2259551 is an equidigital number, since it uses as much as digits as its factorization.

2259551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7921.

The product of its digits is 4500, while the sum is 29.

The square root of 2259551 is about 1503.1802952407. The cubic root of 2259551 is about 131.2222205758. Note that the first 5 decimals are identical.

Subtracting from 2259551 its sum of digits (29), we obtain a palindrome (2259522).

The spelling of 2259551 in words is "two million, two hundred fifty-nine thousand, five hundred fifty-one".