2506717 has 2 divisors, whose sum is σ = 2506718. Its totient is φ = 2506716.

The previous prime is 2506697. The next prime is 2506723. The reversal of 2506717 is 7176052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2477476 + 29241 = 1574^2 + 171^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506717 - 2¹¹ = 2504669 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2503717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253358 + 1253359.

It is an arithmetic number, because the mean of its divisors is an integer number (1253359).

2^2506717 is an apocalyptic number.

It is an amenable number.

2506717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506717 is an equidigital number, since it uses as much as digits as its factorization.

2506717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 2506717 is about 1583.2615071428. The cubic root of 2506717 is about 135.8423237512.

It can be divided in two parts, 2506 and 717, that added together give a palindrome (3223).

The spelling of 2506717 in words is "two million, five hundred six thousand, seven hundred seventeen".