53534389 has 2 divisors, whose sum is σ = 53534390. Its totient is φ = 53534388.

The previous prime is 53534387. The next prime is 53534413. The reversal of 53534389 is 98343535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46991025 + 6543364 = 6855^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 53534389 - 2¹ = 53534387 is a prime.

Together with 53534387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53534387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26767194 + 26767195.

It is an arithmetic number, because the mean of its divisors is an integer number (26767195).

Almost surely, 2^53534389 is an apocalyptic number.

It is an amenable number.

53534389 is a deficient number, since it is larger than the sum of its proper divisors (1).

53534389 is an equidigital number, since it uses as much as digits as its factorization.

53534389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The square root of 53534389 is about 7316.7198251676. The cubic root of 53534389 is about 376.8868199867.

The spelling of 53534389 in words is "fifty-three million, five hundred thirty-four thousand, three hundred eighty-nine".