53503633 has 2 divisors, whose sum is σ = 53503634. Its totient is φ = 53503632.

The previous prime is 53503603. The next prime is 53503643. The reversal of 53503633 is 33630535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37246609 + 16257024 = 6103^2 + 4032^2 .

It is a cyclic number.

It is not a de Polignac number, because 53503633 - 2¹³ = 53495441 is a prime.

It is not a weakly prime, because it can be changed into another prime (53503603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26751816 + 26751817.

It is an arithmetic number, because the mean of its divisors is an integer number (26751817).

Almost surely, 2^53503633 is an apocalyptic number.

It is an amenable number.

53503633 is a deficient number, since it is larger than the sum of its proper divisors (1).

53503633 is an equidigital number, since it uses as much as digits as its factorization.

53503633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 28.

The square root of 53503633 is about 7314.6177617152. The cubic root of 53503633 is about 376.8146311764.

The spelling of 53503633 in words is "fifty-three million, five hundred three thousand, six hundred thirty-three".