125545512 has 32 divisors (see below), whose sum is σ = 314138880. Its totient is φ = 41811840.

The previous prime is 125545439. The next prime is 125545529. The reversal of 125545512 is 215545521.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 125545512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50212 + ... + 52652.

It is an arithmetic number, because the mean of its divisors is an integer number (9816840).

Almost surely, 2^125545512 is an apocalyptic number.

125545512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125545512 is an abundant number, since it is smaller than the sum of its proper divisors (188593368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125545512 is a wasteful number, since it uses less digits than its factorization.

125545512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593 (or 4589 counting only the distinct ones).

The product of its digits is 10000, while the sum is 30.

The square root of 125545512 is about 11204.7093670474. The cubic root of 125545512 is about 500.7262938171.

Subtracting 125545512 from its reverse (215545521), we obtain a palindrome (90000009).

The spelling of 125545512 in words is "one hundred twenty-five million, five hundred forty-five thousand, five hundred twelve".