54565660 has 24 divisors (see below), whose sum is σ = 119570976. Its totient is φ = 20877120.

The previous prime is 54565657. The next prime is 54565661. The reversal of 54565660 is 6656545.

It is a super-2 number, since 2×54565660² = 5954822502471200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54565661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58851 + ... + 59770.

It is an arithmetic number, because the mean of its divisors is an integer number (4982124).

Almost surely, 2^54565660 is an apocalyptic number.

It is an amenable number.

54565660 is an abundant number, since it is smaller than the sum of its proper divisors (65005316).

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

54565660 is a wasteful number, since it uses less digits than its factorization.

54565660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118653 (or 118651 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 54565660 is about 7386.8572478423. The cubic root of 54565660 is about 379.2915238823.

It can be divided in two parts, 54565 and 660, that added together give a square (55225 = 235²).

The spelling of 54565660 in words is "fifty-four million, five hundred sixty-five thousand, six hundred sixty".