2545452542623 has 4 divisors (see below), whose sum is σ = 2545456057560. Its totient is φ = 2545449027688.

The previous prime is 2545452542579. The next prime is 2545452542629. The reversal of 2545452542623 is 3262452545452.

2545452542623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2545452542623 - 2³⁷ = 2408013589151 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545452542629) 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, 226840 + ... + 2267677.

It is an arithmetic number, because the mean of its divisors is an integer number (636364014390).

Almost surely, 2^{2545452542623} is an apocalyptic number.

2545452542623 is a deficient number, since it is larger than the sum of its proper divisors (3514937).

2545452542623 is a wasteful number, since it uses less digits than its factorization.

2545452542623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514936.

The product of its digits is 11520000, while the sum is 49.

The spelling of 2545452542623 in words is "two trillion, five hundred forty-five billion, four hundred fifty-two million, five hundred forty-two thousand, six hundred twenty-three".