2665513 has 2 divisors, whose sum is σ = 2665514. Its totient is φ = 2665512.

The previous prime is 2665501. The next prime is 2665547. The reversal of 2665513 is 3155662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2650384 + 15129 = 1628^2 + 123^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665513 - 2⁹ = 2665001 is a prime.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (2665913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332756 + 1332757.

It is an arithmetic number, because the mean of its divisors is an integer number (1332757).

2^2665513 is an apocalyptic number.

It is an amenable number.

2665513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665513 is an equidigital number, since it uses as much as digits as its factorization.

2665513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 28.

The square root of 2665513 is about 1632.6398868091. The cubic root of 2665513 is about 138.6522542908.

The spelling of 2665513 in words is "two million, six hundred sixty-five thousand, five hundred thirteen".