64523032531 has 2 divisors, whose sum is σ = 64523032532. Its totient is φ = 64523032530.

The previous prime is 64523032529. The next prime is 64523032559. The reversal of 64523032531 is 13523032546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64523032531 - 2¹ = 64523032529 is a prime.

It is a super-2 number, since 2×64523032531² (a number of 22 digits) contains 22 as substring.

Together with 64523032529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64523032571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32261516265 + 32261516266.

It is an arithmetic number, because the mean of its divisors is an integer number (32261516266).

Almost surely, 2^64523032531 is an apocalyptic number.

64523032531 is a deficient number, since it is larger than the sum of its proper divisors (1).

64523032531 is an equidigital number, since it uses as much as digits as its factorization.

64523032531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 64523032531 in words is "sixty-four billion, five hundred twenty-three million, thirty-two thousand, five hundred thirty-one".