125275125420 has 96 divisors (see below), whose sum is σ = 390430756800. Its totient is φ = 33347907072.

The previous prime is 125275125413. The next prime is 125275125421. The reversal of 125275125420 is 24521572521.

125275125420 is a `hidden beast` number, since 1 + 2 + 527 + 5 + 125 + 4 + 2 + 0 = 666.

125275125420 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (125275125421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103402 + ... + 511118.

It is an arithmetic number, because the mean of its divisors is an integer number (4066987050).

Almost surely, 2^125275125420 is an apocalyptic number.

125275125420 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 125275125420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195215378400).

125275125420 is an abundant number, since it is smaller than the sum of its proper divisors (265155631380).

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

125275125420 is a wasteful number, since it uses less digits than its factorization.

125275125420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408304 (or 408296 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

Adding to 125275125420 its reverse (24521572521), we get a palindrome (149796697941).

The spelling of 125275125420 in words is "one hundred twenty-five billion, two hundred seventy-five million, one hundred twenty-five thousand, four hundred twenty".