64576511 has 2 divisors, whose sum is σ = 64576512. Its totient is φ = 64576510.

The previous prime is 64576493. The next prime is 64576513. The reversal of 64576511 is 11567546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64576511 - 2²² = 60382207 is a prime.

Together with 64576513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64576513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32288255 + 32288256.

It is an arithmetic number, because the mean of its divisors is an integer number (32288256).

Almost surely, 2^64576511 is an apocalyptic number.

64576511 is a deficient number, since it is larger than the sum of its proper divisors (1).

64576511 is an equidigital number, since it uses as much as digits as its factorization.

64576511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 64576511 is about 8035.9511571438. The cubic root of 64576511 is about 401.1974761333.

The spelling of 64576511 in words is "sixty-four million, five hundred seventy-six thousand, five hundred eleven".