40155425 has 12 divisors (see below), whose sum is σ = 49984896. Its totient is φ = 32000400.

The previous prime is 40155407. The next prime is 40155433. The reversal of 40155425 is 52455104.

It is not a de Polignac number, because 40155425 - 2⁶ = 40155361 is a prime.

It is a super-2 number, since 2×40155425² = 3224916313861250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40155394 and 40155403.

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 11 ways as a sum of consecutive naturals, for example, 3812 + ... + 9738.

It is an arithmetic number, because the mean of its divisors is an integer number (4165408).

Almost surely, 2^40155425 is an apocalyptic number.

It is an amenable number.

40155425 is a deficient number, since it is larger than the sum of its proper divisors (9829471).

40155425 is a wasteful number, since it uses less digits than its factorization.

40155425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208 (or 6203 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 40155425 is about 6336.8308325219. The cubic root of 40155425 is about 342.4375718708.

The spelling of 40155425 in words is "forty million, one hundred fifty-five thousand, four hundred twenty-five".