53557433 has 2 divisors, whose sum is σ = 53557434. Its totient is φ = 53557432.

The previous prime is 53557423. The next prime is 53557457. The reversal of 53557433 is 33475535.

It is a happy number.

53557433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51222649 + 2334784 = 7157^2 + 1528^2 .

It is a cyclic number.

It is not a de Polignac number, because 53557433 - 2⁴ = 53557417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53557393 and 53557402.

It is not a weakly prime, because it can be changed into another prime (53557423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26778716 + 26778717.

It is an arithmetic number, because the mean of its divisors is an integer number (26778717).

Almost surely, 2^53557433 is an apocalyptic number.

It is an amenable number.

53557433 is a deficient number, since it is larger than the sum of its proper divisors (1).

53557433 is an equidigital number, since it uses as much as digits as its factorization.

53557433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 35.

The square root of 53557433 is about 7318.2944051193. The cubic root of 53557433 is about 376.9408894934.

The spelling of 53557433 in words is "fifty-three million, five hundred fifty-seven thousand, four hundred thirty-three".