2530261 has 2 divisors, whose sum is σ = 2530262. Its totient is φ = 2530260.

The previous prime is 2530247. The next prime is 2530267. The reversal of 2530261 is 1620352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1874161 + 656100 = 1369^2 + 810^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530261 - 2⁹ = 2529749 is a prime.

2530261 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2530267) 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 as a sum of consecutive naturals, namely, 1265130 + 1265131.

It is an arithmetic number, because the mean of its divisors is an integer number (1265131).

2^2530261 is an apocalyptic number.

It is an amenable number.

2530261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530261 is an equidigital number, since it uses as much as digits as its factorization.

2530261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2530261 is about 1590.6794145899. The cubic root of 2530261 is about 136.2662926958.

Subtracting from 2530261 its reverse (1620352), we obtain a palindrome (909909).

The spelling of 2530261 in words is "two million, five hundred thirty thousand, two hundred sixty-one".