54511020 has 72 divisors (see below), whose sum is σ = 170701440. Its totient is φ = 14065920.

The previous prime is 54511001. The next prime is 54511033. The reversal of 54511020 is 2011545.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 54510984 and 54511002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 696 + ... + 10464.

Almost surely, 2^54511020 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 54511020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85350720).

54511020 is an abundant number, since it is smaller than the sum of its proper divisors (116190420).

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

54511020 is a wasteful number, since it uses less digits than its factorization.

54511020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815 (or 9810 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 54511020 is about 7383.1578609698. The cubic root of 54511020 is about 379.1648788441.

Adding to 54511020 its reverse (2011545), we get a palindrome (56522565).

The spelling of 54511020 in words is "fifty-four million, five hundred eleven thousand, twenty".