25304120530 has 32 divisors (see below), whose sum is σ = 49085797824. Its totient is φ = 9336444096.

The previous prime is 25304120483. The next prime is 25304120537. The reversal of 25304120530 is 3502140352.

It is a junction number, because it is equal to n+sod(n) for n = 25304120495 and 25304120504.

It is not an unprimeable number, because it can be changed into a prime (25304120537) by changing a digit.

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, 117309 + ... + 253711.

It is an arithmetic number, because the mean of its divisors is an integer number (1533931182).

Almost surely, 2^25304120530 is an apocalyptic number.

25304120530 is a deficient number, since it is larger than the sum of its proper divisors (23781677294).

25304120530 is a wasteful number, since it uses less digits than its factorization.

25304120530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137850.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 25304120530 its reverse (3502140352), we get a palindrome (28806260882).

The spelling of 25304120530 in words is "twenty-five billion, three hundred four million, one hundred twenty thousand, five hundred thirty".