125022040521025 has 24 divisors (see below), whose sum is σ = 158120948220984. Its totient is φ = 98025777907200.

The previous prime is 125022040521011. The next prime is 125022040521031. The reversal of 125022040521025 is 520125040220521.

It can be written as a sum of positive squares in 12 ways, for example, as 22815945772816 + 102206094748209 = 4776604^2 + 10109703^2 .

It is not a de Polignac number, because 125022040521025 - 2⁹ = 125022040520513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 49108666 + ... + 51591715.

It is an arithmetic number, because the mean of its divisors is an integer number (6588372842541).

Almost surely, 2^{125022040521025} is an apocalyptic number.

It is an amenable number.

125022040521025 is a deficient number, since it is larger than the sum of its proper divisors (33098907699959).

125022040521025 is a wasteful number, since it uses less digits than its factorization.

125022040521025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100701381 (or 100701376 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 125022040521025 its reverse (520125040220521), we get a palindrome (645147080741546).

The spelling of 125022040521025 in words is "one hundred twenty-five trillion, twenty-two billion, forty million, five hundred twenty-one thousand, twenty-five".