53432369 has 2 divisors, whose sum is σ = 53432370. Its totient is φ = 53432368.

The previous prime is 53432339. The next prime is 53432387. The reversal of 53432369 is 96323435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49168144 + 4264225 = 7012^2 + 2065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53432369 is a prime.

It is a super-2 number, since 2×53432369² = 5710036113904322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53432339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26716184 + 26716185.

It is an arithmetic number, because the mean of its divisors is an integer number (26716185).

Almost surely, 2^53432369 is an apocalyptic number.

It is an amenable number.

53432369 is a deficient number, since it is larger than the sum of its proper divisors (1).

53432369 is an equidigital number, since it uses as much as digits as its factorization.

53432369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 35.

The square root of 53432369 is about 7309.7447971868. The cubic root of 53432369 is about 376.6472578125.

The spelling of 53432369 in words is "fifty-three million, four hundred thirty-two thousand, three hundred sixty-nine".