2523123217 has 2 divisors, whose sum is σ = 2523123218. Its totient is φ = 2523123216.

The previous prime is 2523123209. The next prime is 2523123223. The reversal of 2523123217 is 7123213252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2318518801 + 204604416 = 48151^2 + 14304^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523123217 - 2³ = 2523123209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2523123227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261561608 + 1261561609.

It is an arithmetic number, because the mean of its divisors is an integer number (1261561609).

Almost surely, 2^2523123217 is an apocalyptic number.

It is an amenable number.

2523123217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523123217 is an equidigital number, since it uses as much as digits as its factorization.

2523123217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 2523123217 is about 50230.6999453521. The cubic root of 2523123217 is about 1361.3803777687.

Adding to 2523123217 its reverse (7123213252), we get a palindrome (9646336469).

The spelling of 2523123217 in words is "two billion, five hundred twenty-three million, one hundred twenty-three thousand, two hundred seventeen".