25548495425 has 12 divisors (see below), whose sum is σ = 31682125116. Its totient is φ = 20437512000.

The previous prime is 25548495389. The next prime is 25548495437. The reversal of 25548495425 is 52459484552.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 14934550849 + 10613944576 = 122207^2 + 103024^2 .

It is not a de Polignac number, because 25548495425 - 2⁶ = 25548495361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 709967 + ... + 745083.

It is an arithmetic number, because the mean of its divisors is an integer number (2640177093).

Almost surely, 2^25548495425 is an apocalyptic number.

25548495425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25548495425 is a deficient number, since it is larger than the sum of its proper divisors (6133629691).

25548495425 is a wasteful number, since it uses less digits than its factorization.

25548495425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64228 (or 64223 counting only the distinct ones).

The product of its digits is 11520000, while the sum is 53.

The spelling of 25548495425 in words is "twenty-five billion, five hundred forty-eight million, four hundred ninety-five thousand, four hundred twenty-five".