40089925 has 6 divisors (see below), whose sum is σ = 49711538. Its totient is φ = 32071920.

The previous prime is 40089911. The next prime is 40089947. The reversal of 40089925 is 52998004.

40089925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 13557124 + 26532801 = 3682^2 + 5151^2 .

It is not a de Polignac number, because 40089925 - 2²³ = 31701317 is a prime.

It is a super-3 number, since 3×40089925³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 801774 + ... + 801823.

Almost surely, 2^40089925 is an apocalyptic number.

It is an amenable number.

40089925 is a deficient number, since it is larger than the sum of its proper divisors (9621613).

40089925 is a wasteful number, since it uses less digits than its factorization.

40089925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603607 (or 1603602 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 40089925 is about 6331.6605246965. The cubic root of 40089925 is about 342.2512801680.

It can be divided in two parts, 40089 and 925, that added together give a palindrome (41014).

The spelling of 40089925 in words is "forty million, eighty-nine thousand, nine hundred twenty-five".