54004520 has 32 divisors (see below), whose sum is σ = 123507720. Its totient is φ = 21246720.

The previous prime is 54004519. The next prime is 54004537. The reversal of 54004520 is 2540045.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27646564 + 26357956 = 5258^2 + 5134^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 54004492 and 54004501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8627 + ... + 13506.

Almost surely, 2^54004520 is an apocalyptic number.

It is an amenable number.

54004520 is an abundant number, since it is smaller than the sum of its proper divisors (69503200).

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

54004520 is a wasteful number, since it uses less digits than its factorization.

54004520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22205 (or 22201 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 54004520 is about 7348.7767689596. The cubic root of 54004520 is about 377.9868606801.

Adding to 54004520 its reverse (2540045), we get a palindrome (56544565).

The spelling of 54004520 in words is "fifty-four million, four thousand, five hundred twenty".