53728933 has 2 divisors, whose sum is σ = 53728934. Its totient is φ = 53728932.

The previous prime is 53728907. The next prime is 53728937. The reversal of 53728933 is 33982735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47568609 + 6160324 = 6897^2 + 2482^2 .

It is a cyclic number.

It is not a de Polignac number, because 53728933 - 2²¹ = 51631781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53728937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26864466 + 26864467.

It is an arithmetic number, because the mean of its divisors is an integer number (26864467).

Almost surely, 2^53728933 is an apocalyptic number.

It is an amenable number.

53728933 is a deficient number, since it is larger than the sum of its proper divisors (1).

53728933 is an equidigital number, since it uses as much as digits as its factorization.

53728933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 53728933 is about 7330.0022510228. The cubic root of 53728933 is about 377.3428037228.

The spelling of 53728933 in words is "fifty-three million, seven hundred twenty-eight thousand, nine hundred thirty-three".