2551323 has 8 divisors (see below), whose sum is σ = 3409168. Its totient is φ = 1697184.

The previous prime is 2551313. The next prime is 2551349. The reversal of 2551323 is 3231552.

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

It is not a de Polignac number, because 2551323 - 2¹⁷ = 2420251 is a prime.

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 2551323.

It is not an unprimeable number, because it can be changed into a prime (2551313) 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, 2061 + ... + 3057.

It is an arithmetic number, because the mean of its divisors is an integer number (426146).

2^2551323 is an apocalyptic number.

2551323 is a deficient number, since it is larger than the sum of its proper divisors (857845).

2551323 is an equidigital number, since it uses as much as digits as its factorization.

2551323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853.

The product of its digits is 900, while the sum is 21.

The square root of 2551323 is about 1597.2861359193. The cubic root of 2551323 is about 136.6433438950.

Adding to 2551323 its reverse (3231552), we get a palindrome (5782875).

The spelling of 2551323 in words is "two million, five hundred fifty-one thousand, three hundred twenty-three".