662722531 has 2 divisors, whose sum is σ = 662722532. Its totient is φ = 662722530.

The previous prime is 662722519. The next prime is 662722549. The reversal of 662722531 is 135227266.

662722531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 662722531 - 2¹¹ = 662720483 is a prime.

It is a super-2 number, since 2×662722531² = 878402306190091922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (662722031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331361265 + 331361266.

It is an arithmetic number, because the mean of its divisors is an integer number (331361266).

Almost surely, 2^662722531 is an apocalyptic number.

662722531 is a deficient number, since it is larger than the sum of its proper divisors (1).

662722531 is an equidigital number, since it uses as much as digits as its factorization.

662722531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 662722531 is about 25743.3978138085. The cubic root of 662722531 is about 871.8542961918.

Adding to 662722531 its reverse (135227266), we get a palindrome (797949797).

The spelling of 662722531 in words is "six hundred sixty-two million, seven hundred twenty-two thousand, five hundred thirty-one".