54565645 has 4 divisors (see below), whose sum is σ = 65478780. Its totient is φ = 43652512.

The previous prime is 54565607. The next prime is 54565657. The reversal of 54565645 is 54656545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 47527236 = 2653^2 + 6894^2 .

It is a cyclic number.

It is not a de Polignac number, because 54565645 - 2⁷ = 54565517 is a prime.

It is a super-3 number, since 3×54565645³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 54565598 and 54565607.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5456560 + ... + 5456569.

It is an arithmetic number, because the mean of its divisors is an integer number (16369695).

Almost surely, 2^54565645 is an apocalyptic number.

It is an amenable number.

54565645 is a deficient number, since it is larger than the sum of its proper divisors (10913135).

54565645 is a wasteful number, since it uses less digits than its factorization.

54565645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10913134.

The product of its digits is 360000, while the sum is 40.

The square root of 54565645 is about 7386.8562325254. The cubic root of 54565645 is about 379.2914891268.

The spelling of 54565645 in words is "fifty-four million, five hundred sixty-five thousand, six hundred forty-five".