2545699123603 has 4 divisors (see below), whose sum is σ = 2565743998720. Its totient is φ = 2525654248488.

The previous prime is 2545699123531. The next prime is 2545699123613. The reversal of 2545699123603 is 3063219965452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2545699123603 - 2⁹ = 2545699123091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545699123613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10022437368 + ... + 10022437621.

It is an arithmetic number, because the mean of its divisors is an integer number (641435999680).

Almost surely, 2^{2545699123603} is an apocalyptic number.

2545699123603 is a deficient number, since it is larger than the sum of its proper divisors (20044875117).

2545699123603 is a wasteful number, since it uses less digits than its factorization.

2545699123603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044875116.

The product of its (nonzero) digits is 10497600, while the sum is 55.

The spelling of 2545699123603 in words is "two trillion, five hundred forty-five billion, six hundred ninety-nine million, one hundred twenty-three thousand, six hundred three".