2523217 has 2 divisors, whose sum is σ = 2523218. Its totient is φ = 2523216.

The previous prime is 2523211. The next prime is 2523223. The reversal of 2523217 is 7123252.

It is a balanced prime because it is at equal distance from previous prime (2523211) and next prime (2523223).

It can be written as a sum of positive squares in only one way, i.e., 2509056 + 14161 = 1584^2 + 119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2523217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2523211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261608 + 1261609.

It is an arithmetic number, because the mean of its divisors is an integer number (1261609).

2^2523217 is an apocalyptic number.

It is an amenable number.

2523217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523217 is an equidigital number, since it uses as much as digits as its factorization.

2523217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 22.

The square root of 2523217 is about 1588.4637232244. The cubic root of 2523217 is about 136.1397244795.

Adding to 2523217 its reverse (7123252), we get a palindrome (9646469).

The spelling of 2523217 in words is "two million, five hundred twenty-three thousand, two hundred seventeen".