25555298039 has 2 divisors, whose sum is σ = 25555298040. Its totient is φ = 25555298038.

The previous prime is 25555298023. The next prime is 25555298063. The reversal of 25555298039 is 93089255552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25555298039 - 2⁴ = 25555298023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25555298099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777649019 + 12777649020.

It is an arithmetic number, because the mean of its divisors is an integer number (12777649020).

Almost surely, 2^25555298039 is an apocalyptic number.

25555298039 is a deficient number, since it is larger than the sum of its proper divisors (1).

25555298039 is an equidigital number, since it uses as much as digits as its factorization.

25555298039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 25555298039 in words is "twenty-five billion, five hundred fifty-five million, two hundred ninety-eight thousand, thirty-nine".