54816553 has 4 divisors (see below), whose sum is σ = 59799888. Its totient is φ = 49833220.

The previous prime is 54816547. The next prime is 54816563. The reversal of 54816553 is 35561845.

54816553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54816553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54816533) 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 3 ways as a sum of consecutive naturals, for example, 2491651 + ... + 2491672.

It is an arithmetic number, because the mean of its divisors is an integer number (14949972).

Almost surely, 2^54816553 is an apocalyptic number.

It is an amenable number.

54816553 is a deficient number, since it is larger than the sum of its proper divisors (4983335).

54816553 is a wasteful number, since it uses less digits than its factorization.

54816553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983334.

The product of its digits is 72000, while the sum is 37.

The square root of 54816553 is about 7403.8201625917. The cubic root of 54816553 is about 379.8719628659.

The spelling of 54816553 in words is "fifty-four million, eight hundred sixteen thousand, five hundred fifty-three".