125538558 has 16 divisors (see below), whose sum is σ = 257863440. Its totient is φ = 40715136.

The previous prime is 125538547. The next prime is 125538559. The reversal of 125538558 is 855835521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125538559) 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, 282523 + ... + 282966.

It is an arithmetic number, because the mean of its divisors is an integer number (16116465).

Almost surely, 2^125538558 is an apocalyptic number.

125538558 is an abundant number, since it is smaller than the sum of its proper divisors (132324882).

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

125538558 is a wasteful number, since it uses less digits than its factorization.

125538558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565531.

The product of its digits is 240000, while the sum is 42.

The square root of 125538558 is about 11204.3990468030. The cubic root of 125538558 is about 500.7170485246.

The spelling of 125538558 in words is "one hundred twenty-five million, five hundred thirty-eight thousand, five hundred fifty-eight".