125870556 has 96 divisors (see below), whose sum is σ = 350461440. Its totient is φ = 34401024.

The previous prime is 125870551. The next prime is 125870593. The reversal of 125870556 is 655078521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125870551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396910 + ... + 397226.

It is an arithmetic number, because the mean of its divisors is an integer number (3650640).

Almost surely, 2^125870556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125870556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175230720).

125870556 is an abundant number, since it is smaller than the sum of its proper divisors (224590884).

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

125870556 is a wasteful number, since it uses less digits than its factorization.

125870556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 125870556 is about 11219.2047846539. The cubic root of 125870556 is about 501.1580570702.

The spelling of 125870556 in words is "one hundred twenty-five million, eight hundred seventy thousand, five hundred fifty-six".