40455025 has 12 divisors (see below), whose sum is σ = 54023452. Its totient is φ = 29874240.

The previous prime is 40455013. The next prime is 40455071. The reversal of 40455025 is 52055404.

40455025 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 6 ways, for example, as 802816 + 39652209 = 896^2 + 6297^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40455025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 61914 + ... + 62563.

Almost surely, 2^40455025 is an apocalyptic number.

It is an amenable number.

40455025 is a deficient number, since it is larger than the sum of its proper divisors (13568427).

40455025 is a wasteful number, since it uses less digits than its factorization.

40455025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124500 (or 124495 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 40455025 is about 6360.4264794116. The cubic root of 40455025 is about 343.2871058717.

The spelling of 40455025 in words is "forty million, four hundred fifty-five thousand, twenty-five".