25443093525 has 48 divisors (see below), whose sum is σ = 42639532800. Its totient is φ = 13384949760.

The previous prime is 25443093521. The next prime is 25443093539. The reversal of 25443093525 is 52539034452.

It is not a de Polignac number, because 25443093525 - 2² = 25443093521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25443093521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11949661 + ... + 11951789.

It is an arithmetic number, because the mean of its divisors is an integer number (888323600).

Almost surely, 2^25443093525 is an apocalyptic number.

25443093525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25443093525 is a deficient number, since it is larger than the sum of its proper divisors (17196439275).

25443093525 is a wasteful number, since it uses less digits than its factorization.

25443093525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238 (or 4233 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 25443093525 in words is "twenty-five billion, four hundred forty-three million, ninety-three thousand, five hundred twenty-five".