53045553 has 24 divisors (see below), whose sum is σ = 80438400. Its totient is φ = 31034080.

The previous prime is 53045537. The next prime is 53045561. The reversal of 53045553 is 35554035.

It is not a de Polignac number, because 53045553 - 2⁴ = 53045537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53045553.

It is not an unprimeable number, because it can be changed into a prime (53045053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8008 + ... + 13046.

It is an arithmetic number, because the mean of its divisors is an integer number (3351600).

Almost surely, 2^53045553 is an apocalyptic number.

It is an amenable number.

53045553 is a deficient number, since it is larger than the sum of its proper divisors (27392847).

53045553 is a wasteful number, since it uses less digits than its factorization.

53045553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093 (or 5082 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 53045553 is about 7283.2378102050. The cubic root of 53045553 is about 375.7361610107.

Adding to 53045553 its reverse (35554035), we get a palindrome (88599588).

The spelling of 53045553 in words is "fifty-three million, forty-five thousand, five hundred fifty-three".