64413523 has 2 divisors, whose sum is σ = 64413524. Its totient is φ = 64413522.

The previous prime is 64413509. The next prime is 64413533. The reversal of 64413523 is 32531446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64413523 - 2⁵ = 64413491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64413491 and 64413500.

It is not a weakly prime, because it can be changed into another prime (64413533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32206761 + 32206762.

It is an arithmetic number, because the mean of its divisors is an integer number (32206762).

Almost surely, 2^64413523 is an apocalyptic number.

64413523 is a deficient number, since it is larger than the sum of its proper divisors (1).

64413523 is an equidigital number, since it uses as much as digits as its factorization.

64413523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 64413523 is about 8025.8035734747. The cubic root of 64413523 is about 400.8596573994.

Adding to 64413523 its reverse (32531446), we get a palindrome (96944969).

The spelling of 64413523 in words is "sixty-four million, four hundred thirteen thousand, five hundred twenty-three".