25005425042 has 8 divisors (see below), whose sum is σ = 40393378956. Its totient is φ = 11540965392.

The previous prime is 25005425041. The next prime is 25005425047. The reversal of 25005425042 is 24052450052.

It can be written as a sum of positive squares in 2 ways, for example, as 25005413161 + 11881 = 158131^2 + 109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25005424996 and 25005425014.

It is not an unprimeable number, because it can be changed into a prime (25005425041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480873533 + ... + 480873584.

Almost surely, 2^25005425042 is an apocalyptic number.

25005425042 is a deficient number, since it is larger than the sum of its proper divisors (15387953914).

25005425042 is a wasteful number, since it uses less digits than its factorization.

25005425042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961747132.

The product of its (nonzero) digits is 16000, while the sum is 29.

Adding to 25005425042 its reverse (24052450052), we get a palindrome (49057875094).

The spelling of 25005425042 in words is "twenty-five billion, five million, four hundred twenty-five thousand, forty-two".