25425243530 has 32 divisors (see below), whose sum is σ = 45950760000. Its totient is φ = 10128972672.

The previous prime is 25425243523. The next prime is 25425243539. The reversal of 25425243530 is 3534252452.

It is not an unprimeable number, because it can be changed into a prime (25425243539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4689161 + ... + 4694579.

It is an arithmetic number, because the mean of its divisors is an integer number (1435961250).

Almost surely, 2^25425243530 is an apocalyptic number.

25425243530 is a deficient number, since it is larger than the sum of its proper divisors (20525516470).

25425243530 is a wasteful number, since it uses less digits than its factorization.

25425243530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 25425243530 its reverse (3534252452), we get a palindrome (28959495982).

The spelling of 25425243530 in words is "twenty-five billion, four hundred twenty-five million, two hundred forty-three thousand, five hundred thirty".