53504553 has 16 divisors (see below), whose sum is σ = 73488960. Its totient is φ = 34600896.

The previous prime is 53504537. The next prime is 53504557. The reversal of 53504553 is 35540535.

It is not a de Polignac number, because 53504553 - 2⁴ = 53504537 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53504553.

It is not an unprimeable number, because it can be changed into a prime (53504557) 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 in 15 ways as a sum of consecutive naturals, for example, 56026 + ... + 56972.

It is an arithmetic number, because the mean of its divisors is an integer number (4593060).

Almost surely, 2^53504553 is an apocalyptic number.

It is an amenable number.

53504553 is a deficient number, since it is larger than the sum of its proper divisors (19984407).

53504553 is a wasteful number, since it uses less digits than its factorization.

53504553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496.

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

The square root of 53504553 is about 7314.6806492150. The cubic root of 53504553 is about 376.8167909517.

The spelling of 53504553 in words is "fifty-three million, five hundred four thousand, five hundred fifty-three".