2551459 has 4 divisors (see below), whose sum is σ = 2662416. Its totient is φ = 2440504.

The previous prime is 2551457. The next prime is 2551469. The reversal of 2551459 is 9541552.

2551459 = 322² + 323² + ... + 344².

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

It is a cyclic number.

It is not a de Polignac number, because 2551459 - 2¹ = 2551457 is a prime.

It is a Duffinian number.

2551459 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2551459.

It is not an unprimeable number, because it can be changed into a prime (2551457) 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 3 ways as a sum of consecutive naturals, for example, 55444 + ... + 55489.

It is an arithmetic number, because the mean of its divisors is an integer number (665604).

2^2551459 is an apocalyptic number.

2551459 is a deficient number, since it is larger than the sum of its proper divisors (110957).

2551459 is a wasteful number, since it uses less digits than its factorization.

2551459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110956.

The product of its digits is 9000, while the sum is 31.

The square root of 2551459 is about 1597.3287075615. The cubic root of 2551459 is about 136.6457718072.

The spelling of 2551459 in words is "two million, five hundred fifty-one thousand, four hundred fifty-nine".