125445556 has 12 divisors (see below), whose sum is σ = 219717792. Its totient is φ = 62669048.

The previous prime is 125445521. The next prime is 125445571. The reversal of 125445556 is 655544521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7930 + ... + 17713.

It is an arithmetic number, because the mean of its divisors is an integer number (18309816).

Almost surely, 2^125445556 is an apocalyptic number.

It is an amenable number.

125445556 is a deficient number, since it is larger than the sum of its proper divisors (94272236).

125445556 is a wasteful number, since it uses less digits than its factorization.

125445556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26870 (or 26868 counting only the distinct ones).

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

The square root of 125445556 is about 11200.2480329678. The cubic root of 125445556 is about 500.5933702117.

The spelling of 125445556 in words is "one hundred twenty-five million, four hundred forty-five thousand, five hundred fifty-six".