40255207 has 2 divisors, whose sum is σ = 40255208. Its totient is φ = 40255206.

The previous prime is 40255199. The next prime is 40255231. The reversal of 40255207 is 70255204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40255207 - 2³ = 40255199 is a prime.

It is a super-2 number, since 2×40255207² = 3240963381225698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40255307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20127603 + 20127604.

It is an arithmetic number, because the mean of its divisors is an integer number (20127604).

Almost surely, 2^40255207 is an apocalyptic number.

40255207 is a deficient number, since it is larger than the sum of its proper divisors (1).

40255207 is an equidigital number, since it uses as much as digits as its factorization.

40255207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 40255207 is about 6344.6991260421. The cubic root of 40255207 is about 342.7209776837.

The spelling of 40255207 in words is "forty million, two hundred fifty-five thousand, two hundred seven".