25054389797 has 2 divisors, whose sum is σ = 25054389798. Its totient is φ = 25054389796.

The previous prime is 25054389793. The next prime is 25054389799. The reversal of 25054389797 is 79798345052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18718070596 + 6336319201 = 136814^2 + 79601^2 .

It is a cyclic number.

It is not a de Polignac number, because 25054389797 - 2² = 25054389793 is a prime.

Together with 25054389799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25054389793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527194898 + 12527194899.

It is an arithmetic number, because the mean of its divisors is an integer number (12527194899).

Almost surely, 2^25054389797 is an apocalyptic number.

It is an amenable number.

25054389797 is a deficient number, since it is larger than the sum of its proper divisors (1).

25054389797 is an equidigital number, since it uses as much as digits as its factorization.

25054389797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19051200, while the sum is 59.

The spelling of 25054389797 in words is "twenty-five billion, fifty-four million, three hundred eighty-nine thousand, seven hundred ninety-seven".