25553100425 has 24 divisors (see below), whose sum is σ = 32041032576. Its totient is φ = 20213706240.

The previous prime is 25553100421. The next prime is 25553100427. The reversal of 25553100425 is 52400135552.

It is not a de Polignac number, because 25553100425 - 2² = 25553100421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25553100391 and 25553100400.

It is not an unprimeable number, because it can be changed into a prime (25553100421) 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 in 23 ways as a sum of consecutive naturals, for example, 3155732 + ... + 3163818.

It is an arithmetic number, because the mean of its divisors is an integer number (1335043024).

Almost surely, 2^25553100425 is an apocalyptic number.

25553100425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25553100425 is a deficient number, since it is larger than the sum of its proper divisors (6487932151).

25553100425 is a wasteful number, since it uses less digits than its factorization.

25553100425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9497 (or 9492 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 25553100425 its reverse (52400135552), we get a palindrome (77953235977).

The spelling of 25553100425 in words is "twenty-five billion, five hundred fifty-three million, one hundred thousand, four hundred twenty-five".