25544123023 has 4 divisors (see below), whose sum is σ = 25544487808. Its totient is φ = 25543758240.

The previous prime is 25544123021. The next prime is 25544123027. The reversal of 25544123023 is 32032144552.

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 25544123023 - 2¹ = 25544123021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25544123021) 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, 40623 + ... + 229648.

It is an arithmetic number, because the mean of its divisors is an integer number (6386121952).

Almost surely, 2^25544123023 is an apocalyptic number.

25544123023 is a deficient number, since it is larger than the sum of its proper divisors (364785).

25544123023 is an equidigital number, since it uses as much as digits as its factorization.

25544123023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364784.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 25544123023 its reverse (32032144552), we get a palindrome (57576267575).

The spelling of 25544123023 in words is "twenty-five billion, five hundred forty-four million, one hundred twenty-three thousand, twenty-three".