2500717 has 8 divisors (see below), whose sum is σ = 2662200. Its totient is φ = 2348992.

The previous prime is 2500709. The next prime is 2500727. The reversal of 2500717 is 7170052.

It can be written as a sum of positive squares in 4 ways, for example, as 826281 + 1674436 = 909^2 + 1294^2 .

It is not a de Polignac number, because 2500717 - 2³ = 2500709 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4659 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (332775).

2^2500717 is an apocalyptic number.

It is an amenable number.

2500717 is a deficient number, since it is larger than the sum of its proper divisors (161483).

2500717 is an frugal number, since it uses more digits than its factorization.

2500717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 2500717 is about 1581.3655491378. The cubic root of 2500717 is about 135.7338545057.

Adding to 2500717 its reverse (7170052), we get a palindrome (9670769).

The spelling of 2500717 in words is "two million, five hundred thousand, seven hundred seventeen".