54515560 has 64 divisors (see below), whose sum is σ = 140875200. Its totient is φ = 18777600.

The previous prime is 54515557. The next prime is 54515567. The reversal of 54515560 is 6551545.

It is a super-2 number, since 2×54515560² = 5943892564227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54515567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5100 + ... + 11620.

It is an arithmetic number, because the mean of its divisors is an integer number (2201175).

Almost surely, 2^54515560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54515560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70437600).

54515560 is an abundant number, since it is smaller than the sum of its proper divisors (86359640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54515560 is a wasteful number, since it uses less digits than its factorization.

54515560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562 (or 6558 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 54515560 is about 7383.4653110853. The cubic root of 54515560 is about 379.1754049161.

It can be divided in two parts, 5451 and 5560, that added together give a palindrome (11011).

The spelling of 54515560 in words is "fifty-four million, five hundred fifteen thousand, five hundred sixty".