25081130605 has 8 divisors (see below), whose sum is σ = 30098592864. Its totient is φ = 20064080400.

The previous prime is 25081130567. The next prime is 25081130609. The reversal of 25081130605 is 50603118052.

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

It is not a de Polignac number, because 25081130605 - 2⁹ = 25081130093 is a prime.

It is a super-2 number, since 2×25081130605² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25081130609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52150 + ... + 229960.

It is an arithmetic number, because the mean of its divisors is an integer number (3762324108).

Almost surely, 2^25081130605 is an apocalyptic number.

It is an amenable number.

25081130605 is a deficient number, since it is larger than the sum of its proper divisors (5017462259).

25081130605 is a wasteful number, since it uses less digits than its factorization.

25081130605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206027.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 25081130605 its reverse (50603118052), we get a palindrome (75684248657).

The spelling of 25081130605 in words is "twenty-five billion, eighty-one million, one hundred thirty thousand, six hundred five".