54666554 has 4 divisors (see below), whose sum is σ = 81999834. Its totient is φ = 27333276.

The previous prime is 54666541. The next prime is 54666587. The reversal of 54666554 is 45566645.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28890625 + 25775929 = 5375^2 + 5077^2 .

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 as a sum of consecutive naturals, namely, 13666637 + ... + 13666640.

Almost surely, 2^54666554 is an apocalyptic number.

54666554 is a deficient number, since it is larger than the sum of its proper divisors (27333280).

54666554 is a wasteful number, since it uses less digits than its factorization.

54666554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27333279.

The product of its digits is 432000, while the sum is 41.

The square root of 54666554 is about 7393.6833851606. The cubic root of 54666554 is about 379.5251548065.

Subtracting from 54666554 its reverse (45566645), we obtain a palindrome (9099909).

The spelling of 54666554 in words is "fifty-four million, six hundred sixty-six thousand, five hundred fifty-four".