54115553 has 16 divisors (see below), whose sum is σ = 59596800. Its totient is φ = 48943440.

The previous prime is 54115541. The next prime is 54115559. The reversal of 54115553 is 35551145.

It is a cyclic number.

It is not a de Polignac number, because 54115553 - 2⁶ = 54115489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54115559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45950 + ... + 47112.

It is an arithmetic number, because the mean of its divisors is an integer number (3724800).

Almost surely, 2^54115553 is an apocalyptic number.

It is an amenable number.

54115553 is a deficient number, since it is larger than the sum of its proper divisors (5481247).

54115553 is a wasteful number, since it uses less digits than its factorization.

54115553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292.

The product of its digits is 7500, while the sum is 29.

The square root of 54115553 is about 7356.3274125069. The cubic root of 54115553 is about 378.2457296613.

Adding to 54115553 its reverse (35551145), we get a palindrome (89666698).

The spelling of 54115553 in words is "fifty-four million, one hundred fifteen thousand, five hundred fifty-three".