2551279 has 2 divisors, whose sum is σ = 2551280. Its totient is φ = 2551278.

The previous prime is 2551273. The next prime is 2551313. The reversal of 2551279 is 9721552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551279 - 2⁵ = 2551247 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2551279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275639 + 1275640.

It is an arithmetic number, because the mean of its divisors is an integer number (1275640).

2^2551279 is an apocalyptic number.

2551279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551279 is an equidigital number, since it uses as much as digits as its factorization.

2551279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 31.

The square root of 2551279 is about 1597.2723624980. The cubic root of 2551279 is about 136.6425583756.

The spelling of 2551279 in words is "two million, five hundred fifty-one thousand, two hundred seventy-nine".