54505665 has 24 divisors (see below), whose sum is σ = 96490368. Its totient is φ = 28450080.

The previous prime is 54505637. The next prime is 54505681. The reversal of 54505665 is 56650545.

It is a happy number.

54505665 is a `hidden beast` number, since 545 + 0 + 56 + 65 = 666.

It is not a de Polignac number, because 54505665 - 2⁶ = 54505601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10771 + ... + 15000.

It is an arithmetic number, because the mean of its divisors is an integer number (4020432).

Almost surely, 2^54505665 is an apocalyptic number.

It is an amenable number.

54505665 is a deficient number, since it is larger than the sum of its proper divisors (41984703).

54505665 is a wasteful number, since it uses less digits than its factorization.

54505665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25829 (or 25826 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 54505665 is about 7382.7952023607. The cubic root of 54505665 is about 379.1524624286.

The spelling of 54505665 in words is "fifty-four million, five hundred five thousand, six hundred sixty-five".