54565140 has 48 divisors (see below), whose sum is σ = 174609792. Its totient is φ = 12471936.

The previous prime is 54565129. The next prime is 54565183. The reversal of 54565140 is 4156545.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54565098 and 54565107.

It is a congruent number.

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, 64539 + ... + 65378.

It is an arithmetic number, because the mean of its divisors is an integer number (3637704).

Almost surely, 2^54565140 is an apocalyptic number.

It is an amenable number.

54565140 is an abundant number, since it is smaller than the sum of its proper divisors (120044652).

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

54565140 is a wasteful number, since it uses less digits than its factorization.

54565140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129936 (or 129934 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 54565140 is about 7386.8220501106. The cubic root of 54565140 is about 379.2903190206.

The spelling of 54565140 in words is "fifty-four million, five hundred sixty-five thousand, one hundred forty".