40125025420 has 24 divisors (see below), whose sum is σ = 84266582400. Its totient is φ = 16049242752.

The previous prime is 40125025393. The next prime is 40125025427. The reversal of 40125025420 is 2452052104.

It is a super-2 number, since 2×40125025420² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40125025427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583621 + ... + 648739.

It is an arithmetic number, because the mean of its divisors is an integer number (3511107600).

Almost surely, 2^40125025420 is an apocalyptic number.

It is an amenable number.

40125025420 is an abundant number, since it is smaller than the sum of its proper divisors (44141556980).

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

40125025420 is a wasteful number, since it uses less digits than its factorization.

40125025420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95937 (or 95935 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 40125025420 its reverse (2452052104), we get a palindrome (42577077524).

The spelling of 40125025420 in words is "forty billion, one hundred twenty-five million, twenty-five thousand, four hundred twenty".