125004452005 has 16 divisors (see below), whose sum is σ = 157047569280. Its totient is φ = 95391838528.

The previous prime is 125004451991. The next prime is 125004452009. The reversal of 125004452005 is 500254400521.

It is a cyclic number.

It is not a de Polignac number, because 125004452005 - 2¹¹ = 125004449957 is a prime.

It is a super-2 number, since 2×125004452005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125004452009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5181337 + ... + 5205406.

It is an arithmetic number, because the mean of its divisors is an integer number (9815473080).

Almost surely, 2^125004452005 is an apocalyptic number.

It is an amenable number.

125004452005 is a deficient number, since it is larger than the sum of its proper divisors (32043117275).

125004452005 is a wasteful number, since it uses less digits than its factorization.

125004452005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10386860.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 125004452005 its reverse (500254400521), we get a palindrome (625258852526).

The spelling of 125004452005 in words is "one hundred twenty-five billion, four million, four hundred fifty-two thousand, five".