54957666 has 16 divisors (see below), whose sum is σ = 110034144. Its totient is φ = 18299424.

The previous prime is 54957647. The next prime is 54957667. The reversal of 54957666 is 66675945.

It is not an unprimeable number, because it can be changed into a prime (54957667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765 + ... + 10631.

It is an arithmetic number, because the mean of its divisors is an integer number (6877134).

Almost surely, 2^54957666 is an apocalyptic number.

54957666 is an abundant number, since it is smaller than the sum of its proper divisors (55076478).

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

54957666 is a wasteful number, since it uses less digits than its factorization.

54957666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905.

The product of its digits is 1360800, while the sum is 48.

The square root of 54957666 is about 7413.3437799687. The cubic root of 54957666 is about 380.1976487953.

The spelling of 54957666 in words is "fifty-four million, nine hundred fifty-seven thousand, six hundred sixty-six".