40563601 has 4 divisors (see below), whose sum is σ = 43683892. Its totient is φ = 37443312.

The previous prime is 40563571. The next prime is 40563617. The reversal of 40563601 is 10636504.

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 27248400 + 13315201 = 5220^2 + 3649^2 .

It is a cyclic number.

It is not a de Polignac number, because 40563601 - 2⁵ = 40563569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40563631) 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, 1560126 + ... + 1560151.

It is an arithmetic number, because the mean of its divisors is an integer number (10920973).

Almost surely, 2^40563601 is an apocalyptic number.

It is an amenable number.

40563601 is a deficient number, since it is larger than the sum of its proper divisors (3120291).

40563601 is a wasteful number, since it uses less digits than its factorization.

40563601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120290.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40563601 is about 6368.9560369028. The cubic root of 40563601 is about 343.5939441065.

The spelling of 40563601 in words is "forty million, five hundred sixty-three thousand, six hundred one".