25445224039 has 2 divisors, whose sum is σ = 25445224040. Its totient is φ = 25445224038.

The previous prime is 25445224031. The next prime is 25445224117. The reversal of 25445224039 is 93042254452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25445224039 - 2³ = 25445224031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25445223992 and 25445224010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25445224031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12722612019 + 12722612020.

It is an arithmetic number, because the mean of its divisors is an integer number (12722612020).

Almost surely, 2^25445224039 is an apocalyptic number.

25445224039 is a deficient number, since it is larger than the sum of its proper divisors (1).

25445224039 is an equidigital number, since it uses as much as digits as its factorization.

25445224039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 25445224039 in words is "twenty-five billion, four hundred forty-five million, two hundred twenty-four thousand, thirty-nine".