53564729 has 2 divisors, whose sum is σ = 53564730. Its totient is φ = 53564728.

The previous prime is 53564717. The next prime is 53564741. The reversal of 53564729 is 92746535.

53564729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (53564717) and next prime (53564741).

It can be written as a sum of positive squares in only one way, i.e., 48511225 + 5053504 = 6965^2 + 2248^2 .

It is a cyclic number.

It is not a de Polignac number, because 53564729 - 2⁸ = 53564473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53564759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26782364 + 26782365.

It is an arithmetic number, because the mean of its divisors is an integer number (26782365).

Almost surely, 2^53564729 is an apocalyptic number.

It is an amenable number.

53564729 is a deficient number, since it is larger than the sum of its proper divisors (1).

53564729 is an equidigital number, since it uses as much as digits as its factorization.

53564729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 41.

The square root of 53564729 is about 7318.7928649471. The cubic root of 53564729 is about 376.9580052992.

The spelling of 53564729 in words is "fifty-three million, five hundred sixty-four thousand, seven hundred twenty-nine".