125525440120 has 16 divisors (see below), whose sum is σ = 282432240360. Its totient is φ = 50210176032.

The previous prime is 125525440111. The next prime is 125525440127. The reversal of 125525440120 is 21044525521.

It is a super-2 number, since 2×125525440120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125525440127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569067962 + ... + 1569068041.

Almost surely, 2^125525440120 is an apocalyptic number.

125525440120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125525440120 is an abundant number, since it is smaller than the sum of its proper divisors (156906800240).

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

125525440120 is a wasteful number, since it uses less digits than its factorization.

125525440120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138136014 (or 3138136010 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 125525440120 its reverse (21044525521), we get a palindrome (146569965641).

The spelling of 125525440120 in words is "one hundred twenty-five billion, five hundred twenty-five million, four hundred forty thousand, one hundred twenty".