605505431 has 2 divisors, whose sum is σ = 605505432. Its totient is φ = 605505430.

The previous prime is 605505421. The next prime is 605505437. The reversal of 605505431 is 134505506.

605505431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 605505431 - 2²⁶ = 538396567 is a prime.

It is a super-2 number, since 2×605505431² = 733273653940991522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 605505394 and 605505403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605505437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302752715 + 302752716.

It is an arithmetic number, because the mean of its divisors is an integer number (302752716).

Almost surely, 2^605505431 is an apocalyptic number.

605505431 is a deficient number, since it is larger than the sum of its proper divisors (1).

605505431 is an equidigital number, since it uses as much as digits as its factorization.

605505431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 605505431 is about 24607.0199536636. The cubic root of 605505431 is about 846.0045152678.

The spelling of 605505431 in words is "six hundred five million, five hundred five thousand, four hundred thirty-one".