64552567 has 2 divisors, whose sum is σ = 64552568. Its totient is φ = 64552566.

The previous prime is 64552541. The next prime is 64552577. The reversal of 64552567 is 76525546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64552567 - 2²³ = 56163959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64552577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32276283 + 32276284.

It is an arithmetic number, because the mean of its divisors is an integer number (32276284).

Almost surely, 2^64552567 is an apocalyptic number.

64552567 is a deficient number, since it is larger than the sum of its proper divisors (1).

64552567 is an equidigital number, since it uses as much as digits as its factorization.

64552567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 40.

The square root of 64552567 is about 8034.4612140454. The cubic root of 64552567 is about 401.1478840047.

The spelling of 64552567 in words is "sixty-four million, five hundred fifty-two thousand, five hundred sixty-seven".