2551235 has 4 divisors (see below), whose sum is σ = 3061488. Its totient is φ = 2040984.

The previous prime is 2551223. The next prime is 2551247. The reversal of 2551235 is 5321552.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2551223) and next prime (2551247).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551235 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 2551235.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 255119 + ... + 255128.

It is an arithmetic number, because the mean of its divisors is an integer number (765372).

2^2551235 is an apocalyptic number.

2551235 is a deficient number, since it is larger than the sum of its proper divisors (510253).

2551235 is an equidigital number, since it uses as much as digits as its factorization.

2551235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510252.

The product of its digits is 1500, while the sum is 23.

The square root of 2551235 is about 1597.2585889580. The cubic root of 2551235 is about 136.6417728471.

Adding to 2551235 its reverse (5321552), we get a palindrome (7872787).

The spelling of 2551235 in words is "two million, five hundred fifty-one thousand, two hundred thirty-five".