2580749 has 2 divisors, whose sum is σ = 2580750. Its totient is φ = 2580748.

The previous prime is 2580737. The next prime is 2580757. The reversal of 2580749 is 9470852.

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., 2010724 + 570025 = 1418^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580749 - 2⁸ = 2580493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2580049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290374 + 1290375.

It is an arithmetic number, because the mean of its divisors is an integer number (1290375).

2^2580749 is an apocalyptic number.

It is an amenable number.

2580749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580749 is an equidigital number, since it uses as much as digits as its factorization.

2580749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2580749 is about 1606.4709770176. The cubic root of 2580749 is about 137.1666680610.

The spelling of 2580749 in words is "two million, five hundred eighty thousand, seven hundred forty-nine".