2530311 has 16 divisors (see below), whose sum is σ = 3936000. Its totient is φ = 1445304.

The previous prime is 2530309. The next prime is 2530321. The reversal of 2530311 is 1130352.

It is a happy number.

It is not a de Polignac number, because 2530311 - 2¹ = 2530309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (246000).

2^2530311 is an apocalyptic number.

2530311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2530311 is a deficient number, since it is larger than the sum of its proper divisors (1405689).

2530311 is an equidigital number, since it uses as much as digits as its factorization.

2530311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483 (or 2469 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 2530311 is about 1590.6951310669. The cubic root of 2530311 is about 136.2671902672.

Adding to 2530311 its reverse (1130352), we get a palindrome (3660663).

The spelling of 2530311 in words is "two million, five hundred thirty thousand, three hundred eleven".