40403265425 has 6 divisors (see below), whose sum is σ = 50100049158. Its totient is φ = 32322612320.

The previous prime is 40403265391. The next prime is 40403265457. The reversal of 40403265425 is 52456230404.

It can be written as a sum of positive squares in 3 ways, for example, as 4074524224 + 36328741201 = 63832^2 + 190601^2 .

It is not a de Polignac number, because 40403265425 - 2²⁶ = 40336156561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 808065284 + ... + 808065333.

It is an arithmetic number, because the mean of its divisors is an integer number (8350008193).

Almost surely, 2^40403265425 is an apocalyptic number.

It is an amenable number.

40403265425 is a deficient number, since it is larger than the sum of its proper divisors (9696783733).

40403265425 is a wasteful number, since it uses less digits than its factorization.

40403265425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616130627 (or 1616130622 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 40403265425 its reverse (52456230404), we get a palindrome (92859495829).

The spelling of 40403265425 in words is "forty billion, four hundred three million, two hundred sixty-five thousand, four hundred twenty-five".