53545169 has 2 divisors, whose sum is σ = 53545170. Its totient is φ = 53545168.

The previous prime is 53545157. The next prime is 53545171. The reversal of 53545169 is 96154535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27667600 + 25877569 = 5260^2 + 5087^2 .

It is a cyclic number.

It is not a de Polignac number, because 53545169 - 2⁸ = 53544913 is a prime.

It is a super-2 number, since 2×53545169² = 5734170246477122, which contains 22 as substring.

Together with 53545171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53545109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26772584 + 26772585.

It is an arithmetic number, because the mean of its divisors is an integer number (26772585).

Almost surely, 2^53545169 is an apocalyptic number.

It is an amenable number.

53545169 is a deficient number, since it is larger than the sum of its proper divisors (1).

53545169 is an equidigital number, since it uses as much as digits as its factorization.

53545169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 38.

The square root of 53545169 is about 7317.4564569938. The cubic root of 53545169 is about 376.9121156724.

The spelling of 53545169 in words is "fifty-three million, five hundred forty-five thousand, one hundred sixty-nine".