25544240023 has 2 divisors, whose sum is σ = 25544240024. Its totient is φ = 25544240022.

The previous prime is 25544240011. The next prime is 25544240041. The reversal of 25544240023 is 32004244552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25544240023 - 2⁵ = 25544239991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25544240003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12772120011 + 12772120012.

It is an arithmetic number, because the mean of its divisors is an integer number (12772120012).

Almost surely, 2^25544240023 is an apocalyptic number.

25544240023 is a deficient number, since it is larger than the sum of its proper divisors (1).

25544240023 is an equidigital number, since it uses as much as digits as its factorization.

25544240023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 25544240023 its reverse (32004244552), we get a palindrome (57548484575).

The spelling of 25544240023 in words is "twenty-five billion, five hundred forty-four million, two hundred forty thousand, twenty-three".