53449933 has 2 divisors, whose sum is σ = 53449934. Its totient is φ = 53449932.

The previous prime is 53449931. The next prime is 53449961. The reversal of 53449933 is 33994435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35497764 + 17952169 = 5958^2 + 4237^2 .

It is a cyclic number.

It is not a de Polignac number, because 53449933 - 2¹ = 53449931 is a prime.

Together with 53449931, 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 (53449931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26724966 + 26724967.

It is an arithmetic number, because the mean of its divisors is an integer number (26724967).

Almost surely, 2^53449933 is an apocalyptic number.

It is an amenable number.

53449933 is a deficient number, since it is larger than the sum of its proper divisors (1).

53449933 is an equidigital number, since it uses as much as digits as its factorization.

53449933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 40.

The square root of 53449933 is about 7310.9461084048. The cubic root of 53449933 is about 376.6885231094.

The spelling of 53449933 in words is "fifty-three million, four hundred forty-nine thousand, nine hundred thirty-three".