53489339 has 2 divisors, whose sum is σ = 53489340. Its totient is φ = 53489338.

The previous prime is 53489323. The next prime is 53489411. The reversal of 53489339 is 93398435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53489339 - 2⁴ = 53489323 is a prime.

It is a super-2 number, since 2×53489339² = 5722218773313842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53489339.

It is not a weakly prime, because it can be changed into another prime (53489039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26744669 + 26744670.

It is an arithmetic number, because the mean of its divisors is an integer number (26744670).

Almost surely, 2^53489339 is an apocalyptic number.

53489339 is a deficient number, since it is larger than the sum of its proper divisors (1).

53489339 is an equidigital number, since it uses as much as digits as its factorization.

53489339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 44.

The square root of 53489339 is about 7313.6406118977. The cubic root of 53489339 is about 376.7810716605.

The spelling of 53489339 in words is "fifty-three million, four hundred eighty-nine thousand, three hundred thirty-nine".