125582420 has 24 divisors (see below), whose sum is σ = 265653864. Its totient is φ = 49865216.

The previous prime is 125582399. The next prime is 125582459. The reversal of 125582420 is 24285521.

It can be written as a sum of positive squares in 4 ways, for example, as 22316176 + 103266244 = 4724^2 + 10162^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20177 + ... + 25656.

It is an arithmetic number, because the mean of its divisors is an integer number (11068911).

Almost surely, 2^125582420 is an apocalyptic number.

125582420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125582420 is an abundant number, since it is smaller than the sum of its proper divisors (140071444).

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

125582420 is a wasteful number, since it uses less digits than its factorization.

125582420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45979 (or 45977 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 125582420 is about 11206.3562320676. The cubic root of 125582420 is about 500.7753570215.

The spelling of 125582420 in words is "one hundred twenty-five million, five hundred eighty-two thousand, four hundred twenty".