25025426645 has 16 divisors (see below), whose sum is σ = 30201232320. Its totient is φ = 19906800000.

The previous prime is 25025426627. The next prime is 25025426651. The reversal of 25025426645 is 54662452052.

It is not a de Polignac number, because 25025426645 - 2¹² = 25025422549 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 737666 + ... + 770844.

It is an arithmetic number, because the mean of its divisors is an integer number (1887577020).

Almost surely, 2^25025426645 is an apocalyptic number.

It is an amenable number.

25025426645 is a deficient number, since it is larger than the sum of its proper divisors (5175805675).

25025426645 is a wasteful number, since it uses less digits than its factorization.

25025426645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34036.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 25025426645 its reverse (54662452052), we get a palindrome (79687878697).

The spelling of 25025426645 in words is "twenty-five billion, twenty-five million, four hundred twenty-six thousand, six hundred forty-five".