2545098817523 has 2 divisors, whose sum is σ = 2545098817524. Its totient is φ = 2545098817522.

The previous prime is 2545098817489. The next prime is 2545098817543. The reversal of 2545098817523 is 3257188905452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2545098817523 - 2²⁰ = 2545097768947 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545098817543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272549408761 + 1272549408762.

It is an arithmetic number, because the mean of its divisors is an integer number (1272549408762).

Almost surely, 2^{2545098817523} is an apocalyptic number.

2545098817523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545098817523 is an equidigital number, since it uses as much as digits as its factorization.

2545098817523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192000, while the sum is 59.

The spelling of 2545098817523 in words is "two trillion, five hundred forty-five billion, ninety-eight million, eight hundred seventeen thousand, five hundred twenty-three".