25444152130 has 8 divisors (see below), whose sum is σ = 45799473852. Its totient is φ = 10177660848.

The previous prime is 25444152121. The next prime is 25444152163. The reversal of 25444152130 is 3125144452.

It can be written as a sum of positive squares in 2 ways, for example, as 24599726649 + 844425481 = 156843^2 + 29059^2 .

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

It is a super-2 number, since 2×25444152130² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25444152092 and 25444152101.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1272207597 + ... + 1272207616.

Almost surely, 2^25444152130 is an apocalyptic number.

25444152130 is a deficient number, since it is larger than the sum of its proper divisors (20355321722).

25444152130 is a wasteful number, since it uses less digits than its factorization.

25444152130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544415220.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 25444152130 its reverse (3125144452), we get a palindrome (28569296582).

The spelling of 25444152130 in words is "twenty-five billion, four hundred forty-four million, one hundred fifty-two thousand, one hundred thirty".