40004025601 has 4 divisors (see below), whose sum is σ = 40175716932. Its totient is φ = 39832334272.

The previous prime is 40004025587. The next prime is 40004025613. The reversal of 40004025601 is 10652040004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10277093376 + 29726932225 = 101376^2 + 172415^2 .

It is a cyclic number.

It is not a de Polignac number, because 40004025601 - 2¹⁹ = 40003501313 is a prime.

It is a super-2 number, since 2×40004025601² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40004025641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85845316 + ... + 85845781.

It is an arithmetic number, because the mean of its divisors is an integer number (10043929233).

Almost surely, 2^40004025601 is an apocalyptic number.

It is an amenable number.

40004025601 is a deficient number, since it is larger than the sum of its proper divisors (171691331).

40004025601 is a wasteful number, since it uses less digits than its factorization.

40004025601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171691330.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 40004025601 its reverse (10652040004), we get a palindrome (50656065605).

The spelling of 40004025601 in words is "forty billion, four million, twenty-five thousand, six hundred one".