40254205025 has 6 divisors (see below), whose sum is σ = 49915214262. Its totient is φ = 32203364000.

The previous prime is 40254205003. The next prime is 40254205027. The reversal of 40254205025 is 52050245204.

It can be written as a sum of positive squares in 3 ways, for example, as 3805285969 + 36448919056 = 61687^2 + 190916^2 .

It is not a de Polignac number, because 40254205025 - 2⁸ = 40254204769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40254205027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 805084076 + ... + 805084125.

It is an arithmetic number, because the mean of its divisors is an integer number (8319202377).

Almost surely, 2^40254205025 is an apocalyptic number.

It is an amenable number.

40254205025 is a deficient number, since it is larger than the sum of its proper divisors (9661009237).

40254205025 is a wasteful number, since it uses less digits than its factorization.

40254205025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610168211 (or 1610168206 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The spelling of 40254205025 in words is "forty billion, two hundred fifty-four million, two hundred five thousand, twenty-five".