125529107080 has 128 divisors (see below), whose sum is σ = 311830041600. Its totient is φ = 45185559552.

The previous prime is 125529107069. The next prime is 125529107083. The reversal of 125529107080 is 80701925521.

It is a super-2 number, since 2×125529107080² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (125529107083) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 12449481 + ... + 12459559.

It is an arithmetic number, because the mean of its divisors is an integer number (2436172200).

Almost surely, 2^125529107080 is an apocalyptic number.

125529107080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125529107080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155915020800).

125529107080 is an abundant number, since it is smaller than the sum of its proper divisors (186300934520).

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

125529107080 is a wasteful number, since it uses less digits than its factorization.

125529107080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10703 (or 10699 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 125529107080 in words is "one hundred twenty-five billion, five hundred twenty-nine million, one hundred seven thousand, eighty".