125443425540 has 96 divisors (see below), whose sum is σ = 368561249280. Its totient is φ = 31818345856.

The previous prime is 125443425521. The next prime is 125443425551. The reversal of 125443425540 is 45524344521.

It is a super-2 number, since 2×125443425540² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6894 + ... + 500933.

It is an arithmetic number, because the mean of its divisors is an integer number (3839179680).

Almost surely, 2^125443425540 is an apocalyptic number.

125443425540 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 125443425540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184280624640).

125443425540 is an abundant number, since it is smaller than the sum of its proper divisors (243117823740).

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

125443425540 is a wasteful number, since it uses less digits than its factorization.

125443425540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508041 (or 508039 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

The spelling of 125443425540 in words is "one hundred twenty-five billion, four hundred forty-three million, four hundred twenty-five thousand, five hundred forty".