2523378217 has 2 divisors, whose sum is σ = 2523378218. Its totient is φ = 2523378216.

The previous prime is 2523378191. The next prime is 2523378223. The reversal of 2523378217 is 7128733252.

2523378217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1725654681 + 797723536 = 41541^2 + 28244^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523378217 - 2¹⁹ = 2522853929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2523378217.

It is not a weakly prime, because it can be changed into another prime (2523378317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261689108 + 1261689109.

It is an arithmetic number, because the mean of its divisors is an integer number (1261689109).

Almost surely, 2^2523378217 is an apocalyptic number.

It is an amenable number.

2523378217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523378217 is an equidigital number, since it uses as much as digits as its factorization.

2523378217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 2523378217 is about 50233.2381695626. The cubic root of 2523378217 is about 1361.4262389590.

The spelling of 2523378217 in words is "two billion, five hundred twenty-three million, three hundred seventy-eight thousand, two hundred seventeen".