53445269 has 2 divisors, whose sum is σ = 53445270. Its totient is φ = 53445268.

The previous prime is 53445247. The next prime is 53445281. The reversal of 53445269 is 96254435.

53445269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42640900 + 10804369 = 6530^2 + 3287^2 .

It is a cyclic number.

It is not a de Polignac number, because 53445269 - 2⁸ = 53445013 is a prime.

It is a super-2 number, since 2×53445269² = 5712793556964722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53445239) 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, 26722634 + 26722635.

It is an arithmetic number, because the mean of its divisors is an integer number (26722635).

Almost surely, 2^53445269 is an apocalyptic number.

It is an amenable number.

53445269 is a deficient number, since it is larger than the sum of its proper divisors (1).

53445269 is an equidigital number, since it uses as much as digits as its factorization.

53445269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 53445269 is about 7310.6271276820. The cubic root of 53445269 is about 376.6775662738.

The spelling of 53445269 in words is "fifty-three million, four hundred forty-five thousand, two hundred sixty-nine".