54897540 has 48 divisors (see below), whose sum is σ = 155252160. Its totient is φ = 14492800.

The previous prime is 54897503. The next prime is 54897587. The reversal of 54897540 is 4579845.

It is a junction number, because it is equal to n+sod(n) for n = 54897492 and 54897501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1531 + ... + 10589.

It is an arithmetic number, because the mean of its divisors is an integer number (3234420).

Almost surely, 2^54897540 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 54897540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77626080).

54897540 is an abundant number, since it is smaller than the sum of its proper divisors (100354620).

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

54897540 is a wasteful number, since it uses less digits than its factorization.

54897540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9172 (or 9170 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 54897540 is about 7409.2874151297. The cubic root of 54897540 is about 380.0589474573.

The spelling of 54897540 in words is "fifty-four million, eight hundred ninety-seven thousand, five hundred forty".