40655425 has 24 divisors (see below), whose sum is σ = 52541280. Its totient is φ = 31180800.

The previous prime is 40655413. The next prime is 40655437. The reversal of 40655425 is 52455604.

It is an interprime number because it is at equal distance from previous prime (40655413) and next prime (40655437).

It is not a de Polignac number, because 40655425 - 2¹⁷ = 40524353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63105 + ... + 63745.

It is an arithmetic number, because the mean of its divisors is an integer number (2189220).

Almost surely, 2^40655425 is an apocalyptic number.

It is an amenable number.

40655425 is a deficient number, since it is larger than the sum of its proper divisors (11885855).

40655425 is a wasteful number, since it uses less digits than its factorization.

40655425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 40655425 is about 6376.1606786529. The cubic root of 40655425 is about 343.8530137542.

The spelling of 40655425 in words is "forty million, six hundred fifty-five thousand, four hundred twenty-five".