54693666 has 48 divisors (see below), whose sum is σ = 125367840. Its totient is φ = 17232696.

The previous prime is 54693601. The next prime is 54693677. The reversal of 54693666 is 66639645.

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 23 ways as a sum of consecutive naturals, for example, 123241 + ... + 123683.

It is an arithmetic number, because the mean of its divisors is an integer number (2611830).

Almost surely, 2^54693666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54693666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62683920).

54693666 is an abundant number, since it is smaller than the sum of its proper divisors (70674174).

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

54693666 is a wasteful number, since it uses less digits than its factorization.

54693666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 467 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 54693666 is about 7395.5166148147. The cubic root of 54693666 is about 379.5878865541.

The spelling of 54693666 in words is "fifty-four million, six hundred ninety-three thousand, six hundred sixty-six".