53404943 has 2 divisors, whose sum is σ = 53404944. Its totient is φ = 53404942.

The previous prime is 53404933. The next prime is 53404957. The reversal of 53404943 is 34940435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53404943 - 2¹² = 53400847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53404903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702471 + 26702472.

It is an arithmetic number, because the mean of its divisors is an integer number (26702472).

Almost surely, 2^53404943 is an apocalyptic number.

53404943 is a deficient number, since it is larger than the sum of its proper divisors (1).

53404943 is an equidigital number, since it uses as much as digits as its factorization.

53404943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 53404943 is about 7307.8685675100. The cubic root of 53404943 is about 376.5828043998.

The spelling of 53404943 in words is "fifty-three million, four hundred four thousand, nine hundred forty-three".