53404339 has 2 divisors, whose sum is σ = 53404340. Its totient is φ = 53404338.

The previous prime is 53404303. The next prime is 53404369. The reversal of 53404339 is 93340435.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53404339 is a prime.

It is equal to p_3192808 and since 53404339 and 3192808 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53404339.

It is not a weakly prime, because it can be changed into another prime (53404369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702169 + 26702170.

It is an arithmetic number, because the mean of its divisors is an integer number (26702170).

Almost surely, 2^53404339 is an apocalyptic number.

53404339 is a deficient number, since it is larger than the sum of its proper divisors (1).

53404339 is an equidigital number, since it uses as much as digits as its factorization.

53404339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 53404339 is about 7307.8272420741. The cubic root of 53404339 is about 376.5813847005.

The spelling of 53404339 in words is "fifty-three million, four hundred four thousand, three hundred thirty-nine".