54655640 has 32 divisors (see below), whose sum is σ = 132436080. Its totient is φ = 20180352.

The previous prime is 54655639. The next prime is 54655661. The reversal of 54655640 is 4655645.

54655640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 54655640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52034 + ... + 53073.

Almost surely, 2^54655640 is an apocalyptic number.

It is an amenable number.

54655640 is an abundant number, since it is smaller than the sum of its proper divisors (77780440).

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

54655640 is a wasteful number, since it uses less digits than its factorization.

54655640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105131 (or 105127 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 54655640 is about 7392.9452858790. The cubic root of 54655640 is about 379.4998961373.

The spelling of 54655640 in words is "fifty-four million, six hundred fifty-five thousand, six hundred forty".