54321553 has 16 divisors (see below), whose sum is σ = 66024000. Its totient is φ = 44009280.

The previous prime is 54321541. The next prime is 54321557. The reversal of 54321553 is 35512345.

54321553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54321553 - 2⁵ = 54321521 is a prime.

It is a super-2 number, since 2×54321553² = 5901662240663618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54321557) 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 15 ways as a sum of consecutive naturals, for example, 2403 + ... + 10696.

It is an arithmetic number, because the mean of its divisors is an integer number (4126500).

Almost surely, 2^54321553 is an apocalyptic number.

It is an amenable number.

54321553 is a deficient number, since it is larger than the sum of its proper divisors (11702447).

54321553 is a wasteful number, since it uses less digits than its factorization.

54321553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152.

The product of its digits is 9000, while the sum is 28.

The square root of 54321553 is about 7370.3156648817. The cubic root of 54321553 is about 378.7250740421.

Adding to 54321553 its reverse (35512345), we get a palindrome (89833898).

The spelling of 54321553 in words is "fifty-four million, three hundred twenty-one thousand, five hundred fifty-three".