40555201 has 2 divisors, whose sum is σ = 40555202. Its totient is φ = 40555200.

The previous prime is 40555199. The next prime is 40555231. The reversal of 40555201 is 10255504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 4734976 = 5985^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 40555201 - 2¹ = 40555199 is a prime.

Together with 40555199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40555231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20277600 + 20277601.

It is an arithmetic number, because the mean of its divisors is an integer number (20277601).

Almost surely, 2^40555201 is an apocalyptic number.

It is an amenable number.

40555201 is a deficient number, since it is larger than the sum of its proper divisors (1).

40555201 is an equidigital number, since it uses as much as digits as its factorization.

40555201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 40555201 is about 6368.2965540245. The cubic root of 40555201 is about 343.5702250718.

The spelling of 40555201 in words is "forty million, five hundred fifty-five thousand, two hundred one".