125538210580 has 24 divisors (see below), whose sum is σ = 266240446920. Its totient is φ = 49718102400.

The previous prime is 125538210559. The next prime is 125538210619. The reversal of 125538210580 is 85012835521.

It can be written as a sum of positive squares in 4 ways, for example, as 37563091344 + 87975119236 = 193812^2 + 296606^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31071795 + ... + 31075834.

It is an arithmetic number, because the mean of its divisors is an integer number (11093351955).

Almost surely, 2^125538210580 is an apocalyptic number.

125538210580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125538210580 is an abundant number, since it is smaller than the sum of its proper divisors (140702236340).

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

125538210580 is a wasteful number, since it uses less digits than its factorization.

125538210580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62147739 (or 62147737 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 40.

The spelling of 125538210580 in words is "one hundred twenty-five billion, five hundred thirty-eight million, two hundred ten thousand, five hundred eighty".