53443069 has 2 divisors, whose sum is σ = 53443070. Its totient is φ = 53443068.

The previous prime is 53443063. The next prime is 53443073. The reversal of 53443069 is 96034435.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33756100 + 19686969 = 5810^2 + 4437^2 .

It is a cyclic number.

It is not a de Polignac number, because 53443069 - 2⁷ = 53442941 is a prime.

It is a super-2 number, since 2×53443069² = 5712323248277522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53443063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26721534 + 26721535.

It is an arithmetic number, because the mean of its divisors is an integer number (26721535).

Almost surely, 2^53443069 is an apocalyptic number.

It is an amenable number.

53443069 is a deficient number, since it is larger than the sum of its proper divisors (1).

53443069 is an equidigital number, since it uses as much as digits as its factorization.

53443069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 53443069 is about 7310.4766602459. The cubic root of 53443069 is about 376.6723977339.

The spelling of 53443069 in words is "fifty-three million, four hundred forty-three thousand, sixty-nine".