422756531 has 2 divisors, whose sum is σ = 422756532. Its totient is φ = 422756530.

The previous prime is 422756501. The next prime is 422756557. The reversal of 422756531 is 135657224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422756531 - 2¹⁴ = 422740147 is a prime.

It is a super-3 number, since 3×422756531³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 422756491 and 422756500.

It is not a weakly prime, because it can be changed into another prime (422756501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211378265 + 211378266.

It is an arithmetic number, because the mean of its divisors is an integer number (211378266).

Almost surely, 2^422756531 is an apocalyptic number.

422756531 is a deficient number, since it is larger than the sum of its proper divisors (1).

422756531 is an equidigital number, since it uses as much as digits as its factorization.

422756531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 35.

The square root of 422756531 is about 20561.0440153218. The cubic root of 422756531 is about 750.5220253092.

The spelling of 422756531 in words is "four hundred twenty-two million, seven hundred fifty-six thousand, five hundred thirty-one".