2500317 has 6 divisors (see below), whose sum is σ = 3611582. Its totient is φ = 1666872.

The previous prime is 2500301. The next prime is 2500331. The reversal of 2500317 is 7130052.

It can be written as a sum of positive squares in only one way, i.e., 2452356 + 47961 = 1566^2 + 219^2 .

It is not a de Polignac number, because 2500317 - 2⁴ = 2500301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2500317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138898 + ... + 138915.

2^2500317 is an apocalyptic number.

It is an amenable number.

2500317 is a deficient number, since it is larger than the sum of its proper divisors (1111265).

2500317 is a wasteful number, since it uses less digits than its factorization.

2500317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277819 (or 277816 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2500317 is about 1581.2390711085. The cubic root of 2500317 is about 135.7266170565.

Adding to 2500317 its reverse (7130052), we get a palindrome (9630369).

The spelling of 2500317 in words is "two million, five hundred thousand, three hundred seventeen".