40664125 has 16 divisors (see below), whose sum is σ = 51590448. Its totient is φ = 31992000.

The previous prime is 40664101. The next prime is 40664179. The reversal of 40664125 is 52146604.

It can be written as a sum of positive squares in 8 ways, for example, as 10830681 + 29833444 = 3291^2 + 5462^2 .

It is not a de Polignac number, because 40664125 - 2⁵ = 40664093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40664093 and 40664102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4959 + ... + 10291.

It is an arithmetic number, because the mean of its divisors is an integer number (3224403).

Almost surely, 2^40664125 is an apocalyptic number.

It is an amenable number.

40664125 is a deficient number, since it is larger than the sum of its proper divisors (10926323).

40664125 is an equidigital number, since it uses as much as digits as its factorization.

40664125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409 (or 5399 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40664125 is about 6376.8428708884. The cubic root of 40664125 is about 343.8775394508.

The spelling of 40664125 in words is "forty million, six hundred sixty-four thousand, one hundred twenty-five".