652545631 has 2 divisors, whose sum is σ = 652545632. Its totient is φ = 652545630.

The previous prime is 652545623. The next prime is 652545661. The reversal of 652545631 is 136545256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 652545631 - 2³ = 652545623 is a prime.

It is a super-2 number, since 2×652545631² = 851631601074376322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652545601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326272815 + 326272816.

It is an arithmetic number, because the mean of its divisors is an integer number (326272816).

Almost surely, 2^652545631 is an apocalyptic number.

652545631 is a deficient number, since it is larger than the sum of its proper divisors (1).

652545631 is an equidigital number, since it uses as much as digits as its factorization.

652545631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 37.

The square root of 652545631 is about 25544.9727148024. The cubic root of 652545631 is about 867.3684656909.

The spelling of 652545631 in words is "six hundred fifty-two million, five hundred forty-five thousand, six hundred thirty-one".