54681566 has 8 divisors (see below), whose sum is σ = 82135560. Its totient is φ = 27303048.

The previous prime is 54681533. The next prime is 54681587. The reversal of 54681566 is 66518645.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17021 + ... + 19976.

It is an arithmetic number, because the mean of its divisors is an integer number (10266945).

Almost surely, 2^54681566 is an apocalyptic number.

54681566 is a deficient number, since it is larger than the sum of its proper divisors (27453994).

54681566 is a wasteful number, since it uses less digits than its factorization.

54681566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37738.

The product of its digits is 172800, while the sum is 41.

The square root of 54681566 is about 7394.6985063625. The cubic root of 54681566 is about 379.5598921353.

The spelling of 54681566 in words is "fifty-four million, six hundred eighty-one thousand, five hundred sixty-six".