64466531 has 2 divisors, whose sum is σ = 64466532. Its totient is φ = 64466530.

The previous prime is 64466483. The next prime is 64466557. The reversal of 64466531 is 13566446.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64466531 is a prime.

It is a super-2 number, since 2×64466531² = 8311867238347922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64466491 and 64466500.

It is not a weakly prime, because it can be changed into another prime (64466561) 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, 32233265 + 32233266.

It is an arithmetic number, because the mean of its divisors is an integer number (32233266).

Almost surely, 2^64466531 is an apocalyptic number.

64466531 is a deficient number, since it is larger than the sum of its proper divisors (1).

64466531 is an equidigital number, since it uses as much as digits as its factorization.

64466531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 64466531 is about 8029.1052428026. The cubic root of 64466531 is about 400.9695874349.

The spelling of 64466531 in words is "sixty-four million, four hundred sixty-six thousand, five hundred thirty-one".