125545123252 has 12 divisors (see below), whose sum is σ = 219706558596. Its totient is φ = 62771820800.

The previous prime is 125545123241. The next prime is 125545123261. The reversal of 125545123252 is 252321545521.

It can be written as a sum of positive squares in 2 ways, for example, as 80113905936 + 45431217316 = 283044^2 + 213146^2 .

It is a congruent number.

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, 405252 + ... + 644452.

It is an arithmetic number, because the mean of its divisors is an integer number (18308879883).

Almost surely, 2^125545123252 is an apocalyptic number.

It is an amenable number.

125545123252 is a deficient number, since it is larger than the sum of its proper divisors (94161435344).

125545123252 is a wasteful number, since it uses less digits than its factorization.

125545123252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370418 (or 370416 counting only the distinct ones).

The product of its digits is 120000, while the sum is 37.

Adding to 125545123252 its reverse (252321545521), we get a palindrome (377866668773).

The spelling of 125545123252 in words is "one hundred twenty-five billion, five hundred forty-five million, one hundred twenty-three thousand, two hundred fifty-two".