25242525042 has 32 divisors (see below), whose sum is σ = 59686761600. Its totient is φ = 6963454848.

The previous prime is 25242525041. The next prime is 25242525067. The reversal of 25242525042 is 24052524252.

It is a junction number, because it is equal to n+sod(n) for n = 25242524994 and 25242525012.

It is not an unprimeable number, because it can be changed into a prime (25242525041) 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 15 ways as a sum of consecutive naturals, for example, 10361067 + ... + 10363502.

It is an arithmetic number, because the mean of its divisors is an integer number (1865211300).

Almost surely, 2^25242525042 is an apocalyptic number.

25242525042 is an abundant number, since it is smaller than the sum of its proper divisors (34444236558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25242525042 is a wasteful number, since it uses less digits than its factorization.

25242525042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20724610.

The product of its (nonzero) digits is 64000, while the sum is 33.

The spelling of 25242525042 in words is "twenty-five billion, two hundred forty-two million, five hundred twenty-five thousand, forty-two".