40556201 has 4 divisors (see below), whose sum is σ = 46349952. Its totient is φ = 34762452.

The previous prime is 40556189. The next prime is 40556227. The reversal of 40556201 is 10265504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40556201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40556231) 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, 2896865 + ... + 2896878.

It is an arithmetic number, because the mean of its divisors is an integer number (11587488).

Almost surely, 2^40556201 is an apocalyptic number.

It is an amenable number.

40556201 is a deficient number, since it is larger than the sum of its proper divisors (5793751).

40556201 is an equidigital number, since it uses as much as digits as its factorization.

40556201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793750.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 40556201 is about 6368.3750674721. The cubic root of 40556201 is about 343.5730489381.

The spelling of 40556201 in words is "forty million, five hundred fifty-six thousand, two hundred one".