53365568 has 28 divisors (see below), whose sum is σ = 109552740. Its totient is φ = 25761792.

The previous prime is 53365531. The next prime is 53365573. The reversal of 53365568 is 86556335.

It can be written as a sum of positive squares in 2 ways, for example, as 40347904 + 13017664 = 6352^2 + 3608^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12521 + ... + 16232.

Almost surely, 2^53365568 is an apocalyptic number.

53365568 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

53365568 is an abundant number, since it is smaller than the sum of its proper divisors (56187172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53365568 is a wasteful number, since it uses less digits than its factorization.

53365568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28794 (or 28784 counting only the distinct ones).

The product of its digits is 324000, while the sum is 41.

The square root of 53365568 is about 7305.1740567902. The cubic root of 53365568 is about 376.4902312361.

The spelling of 53365568 in words is "fifty-three million, three hundred sixty-five thousand, five hundred sixty-eight".