40756225 has 18 divisors (see below), whose sum is σ = 53694914. Its totient is φ = 30681600.

The previous prime is 40756213. The next prime is 40756241. The reversal of 40756225 is 52265704.

It can be written as a sum of positive squares in 9 ways, for example, as 408321 + 40347904 = 639^2 + 6352^2 .

It is not a de Polignac number, because 40756225 - 2⁹ = 40755713 is a prime.

It is a super-2 number, since 2×40756225² = 3322139752501250, which contains 22 as substring.

It is a Duffinian number.

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 17 ways as a sum of consecutive naturals, for example, 4405 + ... + 10045.

Almost surely, 2^40756225 is an apocalyptic number.

It is an amenable number.

40756225 is a deficient number, since it is larger than the sum of its proper divisors (12938689).

40756225 is a wasteful number, since it uses less digits than its factorization.

40756225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5663 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 40756225 is about 6384.0602284126. The cubic root of 40756225 is about 344.1369592779.

The spelling of 40756225 in words is "forty million, seven hundred fifty-six thousand, two hundred twenty-five".