2551259 has 4 divisors (see below), whose sum is σ = 2566704. Its totient is φ = 2535816.

The previous prime is 2551249. The next prime is 2551273. The reversal of 2551259 is 9521552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551259 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2551249) 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, 7472 + ... + 7805.

It is an arithmetic number, because the mean of its divisors is an integer number (641676).

2^2551259 is an apocalyptic number.

2551259 is a deficient number, since it is larger than the sum of its proper divisors (15445).

2551259 is a wasteful number, since it uses less digits than its factorization.

2551259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15444.

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

The square root of 2551259 is about 1597.2661018127. The cubic root of 2551259 is about 136.6422013183.

The spelling of 2551259 in words is "two million, five hundred fifty-one thousand, two hundred fifty-nine".