53393553 has 64 divisors (see below), whose sum is σ = 89376000. Its totient is φ = 31352832.

The previous prime is 53393537. The next prime is 53393567. The reversal of 53393553 is 35539335.

It is a happy number.

53393553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53393553 - 2⁴ = 53393537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53393453) 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 in 63 ways as a sum of consecutive naturals, for example, 550401 + ... + 550497.

It is an arithmetic number, because the mean of its divisors is an integer number (1396500).

Almost surely, 2^53393553 is an apocalyptic number.

It is an amenable number.

53393553 is a deficient number, since it is larger than the sum of its proper divisors (35982447).

53393553 is a wasteful number, since it uses less digits than its factorization.

53393553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 185 counting only the distinct ones).

The product of its digits is 91125, while the sum is 36.

The square root of 53393553 is about 7307.0892289611. The cubic root of 53393553 is about 376.5560304542.

The spelling of 53393553 in words is "fifty-three million, three hundred ninety-three thousand, five hundred fifty-three".