25030305530 has 8 divisors (see below), whose sum is σ = 45054549972. Its totient is φ = 10012122208.

The previous prime is 25030305527. The next prime is 25030305533. The reversal of 25030305530 is 3550303052.

It is an interprime number because it is at equal distance from previous prime (25030305527) and next prime (25030305533).

It can be written as a sum of positive squares in 2 ways, for example, as 23805095521 + 1225210009 = 154289^2 + 35003^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 25030305530.

It is not an unprimeable number, because it can be changed into a prime (25030305533) 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, 1251515267 + ... + 1251515286.

Almost surely, 2^25030305530 is an apocalyptic number.

25030305530 is a deficient number, since it is larger than the sum of its proper divisors (20024244442).

25030305530 is a wasteful number, since it uses less digits than its factorization.

25030305530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503030560.

The product of its (nonzero) digits is 6750, while the sum is 26.

Adding to 25030305530 its reverse (3550303052), we get a palindrome (28580608582).

The spelling of 25030305530 in words is "twenty-five billion, thirty million, three hundred five thousand, five hundred thirty".