54666644 has 6 divisors (see below), whose sum is σ = 95666634. Its totient is φ = 27333320.

The previous prime is 54666641. The next prime is 54666659. The reversal of 54666644 is 44666645.

It can be written as a sum of positive squares in only one way, i.e., 54582544 + 84100 = 7388^2 + 290^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54666641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6833327 + ... + 6833334.

It is an arithmetic number, because the mean of its divisors is an integer number (15944439).

Almost surely, 2^54666644 is an apocalyptic number.

It is an amenable number.

54666644 is a deficient number, since it is larger than the sum of its proper divisors (40999990).

54666644 is a wasteful number, since it uses less digits than its factorization.

54666644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13666665 (or 13666663 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

The square root of 54666644 is about 7393.6894714344. The cubic root of 54666644 is about 379.5253630829.

Subtracting from 54666644 its reverse (44666645), we obtain a palindrome (9999999).

The spelling of 54666644 in words is "fifty-four million, six hundred sixty-six thousand, six hundred forty-four".