53395729 has 2 divisors, whose sum is σ = 53395730. Its totient is φ = 53395728.

The previous prime is 53395711. The next prime is 53395739. The reversal of 53395729 is 92759335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36626704 + 16769025 = 6052^2 + 4095^2 .

It is a cyclic number.

It is not a de Polignac number, because 53395729 - 2⁵ = 53395697 is a prime.

It is a super-2 number, since 2×53395729² = 5702207750882882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53395709) by changing a digit.

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 as a sum of consecutive naturals, namely, 26697864 + 26697865.

It is an arithmetic number, because the mean of its divisors is an integer number (26697865).

Almost surely, 2^53395729 is an apocalyptic number.

It is an amenable number.

53395729 is a deficient number, since it is larger than the sum of its proper divisors (1).

53395729 is an equidigital number, since it uses as much as digits as its factorization.

53395729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 255150, while the sum is 43.

The square root of 53395729 is about 7307.2381239426. The cubic root of 53395729 is about 376.5611457709.

The spelling of 53395729 in words is "fifty-three million, three hundred ninety-five thousand, seven hundred twenty-nine".