53005553 has 8 divisors (see below), whose sum is σ = 54063072. Its totient is φ = 51958656.

The previous prime is 53005531. The next prime is 53005559. The reversal of 53005553 is 35550035.

53005553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53005553 - 2⁶ = 53005489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53005559) 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 7 ways as a sum of consecutive naturals, for example, 7826 + ... + 12932.

It is an arithmetic number, because the mean of its divisors is an integer number (6757884).

Almost surely, 2^53005553 is an apocalyptic number.

It is an amenable number.

53005553 is a deficient number, since it is larger than the sum of its proper divisors (1057519).

53005553 is a wasteful number, since it uses less digits than its factorization.

53005553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5311.

The product of its (nonzero) digits is 5625, while the sum is 26.

The square root of 53005553 is about 7280.4912608972. The cubic root of 53005553 is about 375.6416936148.

Adding to 53005553 its reverse (35550035), we get a palindrome (88555588).

The spelling of 53005553 in words is "fifty-three million, five thousand, five hundred fifty-three".