2551423 has 8 divisors (see below), whose sum is σ = 2956448. Its totient is φ = 2156544.

The previous prime is 2551421. The next prime is 2551429. The reversal of 2551423 is 3241552.

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

It is a cyclic number.

It is not a de Polignac number, because 2551423 - 2¹ = 2551421 is a prime.

It is a Duffinian number.

2551423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2551394 and 2551403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551421) 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, 1986 + ... + 3007.

It is an arithmetic number, because the mean of its divisors is an integer number (369556).

2^2551423 is an apocalyptic number.

2551423 is a deficient number, since it is larger than the sum of its proper divisors (405025).

2551423 is an equidigital number, since it uses as much as digits as its factorization.

2551423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073.

The product of its digits is 1200, while the sum is 22.

The square root of 2551423 is about 1597.3174387078. The cubic root of 2551423 is about 136.6451291330.

Adding to 2551423 its reverse (3241552), we get a palindrome (5792975).

The spelling of 2551423 in words is "two million, five hundred fifty-one thousand, four hundred twenty-three".