53664511 has 2 divisors, whose sum is σ = 53664512. Its totient is φ = 53664510.

The previous prime is 53664439. The next prime is 53664517. The reversal of 53664511 is 11546635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53664511 - 2¹⁷ = 53533439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53664517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26832255 + 26832256.

It is an arithmetic number, because the mean of its divisors is an integer number (26832256).

Almost surely, 2^53664511 is an apocalyptic number.

53664511 is a deficient number, since it is larger than the sum of its proper divisors (1).

53664511 is an equidigital number, since it uses as much as digits as its factorization.

53664511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 53664511 is about 7325.6065277900. The cubic root of 53664511 is about 377.1919297030.

It can be divided in two parts, 536645 and 11, that multiplied together give a palindrome (5903095).

The spelling of 53664511 in words is "fifty-three million, six hundred sixty-four thousand, five hundred eleven".