40454434525 has 12 divisors (see below), whose sum is σ = 51387000084. Its totient is φ = 31574192000.

The previous prime is 40454434499. The next prime is 40454434547. The reversal of 40454434525 is 52543445404.

It can be written as a sum of positive squares in 6 ways, for example, as 4235015929 + 36219418596 = 65077^2 + 190314^2 .

It is not a de Polignac number, because 40454434525 - 2²⁹ = 39917563613 is a prime.

It is a super-2 number, since 2×40454434525² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19732846 + ... + 19734895.

It is an arithmetic number, because the mean of its divisors is an integer number (4282250007).

Almost surely, 2^40454434525 is an apocalyptic number.

It is an amenable number.

40454434525 is a deficient number, since it is larger than the sum of its proper divisors (10932565559).

40454434525 is a wasteful number, since it uses less digits than its factorization.

40454434525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39467792 (or 39467787 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 40.

Adding to 40454434525 its reverse (52543445404), we get a palindrome (92997879929).

The spelling of 40454434525 in words is "forty billion, four hundred fifty-four million, four hundred thirty-four thousand, five hundred twenty-five".