54504640 has 28 divisors (see below), whose sum is σ = 129789936. Its totient is φ = 21801728.

The previous prime is 54504599. The next prime is 54504643. The reversal of 54504640 is 4640545.

It is a junction number, because it is equal to n+sod(n) for n = 54504599 and 54504608.

It is not an unprimeable number, because it can be changed into a prime (54504643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84844 + ... + 85483.

Almost surely, 2^54504640 is an apocalyptic number.

It is an amenable number.

54504640 is an abundant number, since it is smaller than the sum of its proper divisors (75285296).

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

54504640 is a wasteful number, since it uses less digits than its factorization.

54504640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170344 (or 170334 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 54504640 is about 7382.7257838823. The cubic root of 54504640 is about 379.1500857111.

The spelling of 54504640 in words is "fifty-four million, five hundred four thousand, six hundred forty".