125072556 has 24 divisors (see below), whose sum is σ = 333527040. Its totient is φ = 35734992.

The previous prime is 125072539. The next prime is 125072557. The reversal of 125072556 is 655270521.

It is not an unprimeable number, because it can be changed into a prime (125072557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744396 + ... + 744563.

It is an arithmetic number, because the mean of its divisors is an integer number (13896960).

Almost surely, 2^125072556 is an apocalyptic number.

It is an amenable number.

125072556 is an abundant number, since it is smaller than the sum of its proper divisors (208454484).

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

125072556 is a wasteful number, since it uses less digits than its factorization.

125072556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488973 (or 1488971 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 125072556 is about 11183.5842197392. The cubic root of 125072556 is about 500.0967226216.

The spelling of 125072556 in words is "one hundred twenty-five million, seventy-two thousand, five hundred fifty-six".