2530279 has 4 divisors (see below), whose sum is σ = 2617560. Its totient is φ = 2443000.

The previous prime is 2530277. The next prime is 2530289. The reversal of 2530279 is 9720352.

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 2530279 - 2¹ = 2530277 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530271) 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, 43597 + ... + 43654.

It is an arithmetic number, because the mean of its divisors is an integer number (654390).

2^2530279 is an apocalyptic number.

2530279 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2530279 is a deficient number, since it is larger than the sum of its proper divisors (87281).

2530279 is an equidigital number, since it uses as much as digits as its factorization.

2530279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87280.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 2530279 is about 1590.6850725395. The cubic root of 2530279 is about 136.2666158228.

It can be divided in two parts, 2530 and 279, that added together give a square (2809 = 53²).

The spelling of 2530279 in words is "two million, five hundred thirty thousand, two hundred seventy-nine".