54665565 has 32 divisors (see below), whose sum is σ = 93657600. Its totient is φ = 27144000.

The previous prime is 54665563. The next prime is 54665623. The reversal of 54665565 is 56556645.

It is not a de Polignac number, because 54665565 - 2¹ = 54665563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54665561) 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 31 ways as a sum of consecutive naturals, for example, 15190 + ... + 18440.

It is an arithmetic number, because the mean of its divisors is an integer number (2926800).

Almost surely, 2^54665565 is an apocalyptic number.

It is an amenable number.

54665565 is a deficient number, since it is larger than the sum of its proper divisors (38992035).

54665565 is a wasteful number, since it uses less digits than its factorization.

54665565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337.

The product of its digits is 540000, while the sum is 42.

The square root of 54665565 is about 7393.6165034440. The cubic root of 54665565 is about 379.5228660662.

The spelling of 54665565 in words is "fifty-four million, six hundred sixty-five thousand, five hundred sixty-five".