125302545440 has 96 divisors (see below), whose sum is σ = 299037432960. Its totient is φ = 49613461504.

The previous prime is 125302545427. The next prime is 125302545451. The reversal of 125302545440 is 44545203521.

It is a self number, because there is not a number n which added to its sum of digits gives 125302545440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7861319 + ... + 7877241.

It is an arithmetic number, because the mean of its divisors is an integer number (3114973260).

Almost surely, 2^125302545440 is an apocalyptic number.

125302545440 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 125302545440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149518716480).

125302545440 is an abundant number, since it is smaller than the sum of its proper divisors (173734887520).

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

125302545440 is a wasteful number, since it uses less digits than its factorization.

125302545440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16434 (or 16426 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 125302545440 its reverse (44545203521), we get a palindrome (169847748961).

The spelling of 125302545440 in words is "one hundred twenty-five billion, three hundred two million, five hundred forty-five thousand, four hundred forty".