40041022025 has 6 divisors (see below), whose sum is σ = 49650867342. Its totient is φ = 32032817600.

The previous prime is 40041021983. The next prime is 40041022039. The reversal of 40041022025 is 52022014004.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3079806016 + 36961216009 = 55496^2 + 192253^2 .

It is not a de Polignac number, because 40041022025 - 2¹⁸ = 40040759881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40041021988 and 40041022006.

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 5 ways as a sum of consecutive naturals, for example, 800820416 + ... + 800820465.

It is an arithmetic number, because the mean of its divisors is an integer number (8275144557).

Almost surely, 2^40041022025 is an apocalyptic number.

It is an amenable number.

40041022025 is a deficient number, since it is larger than the sum of its proper divisors (9609845317).

40041022025 is a wasteful number, since it uses less digits than its factorization.

40041022025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601640891 (or 1601640886 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 40041022025 its reverse (52022014004), we get a palindrome (92063036029).

The spelling of 40041022025 in words is "forty billion, forty-one million, twenty-two thousand, twenty-five".