54806661 has 24 divisors (see below), whose sum is σ = 97435520. Its totient is φ = 28908576.

The previous prime is 54806651. The next prime is 54806681. The reversal of 54806661 is 16660845.

It is not a de Polignac number, because 54806661 - 2¹¹ = 54804613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54806641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32641 + ... + 34278.

Almost surely, 2^54806661 is an apocalyptic number.

It is an amenable number.

54806661 is a deficient number, since it is larger than the sum of its proper divisors (42628859).

54806661 is a wasteful number, since it uses less digits than its factorization.

54806661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66945 (or 66942 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 54806661 is about 7403.1520989373. The cubic root of 54806661 is about 379.8491113773.

The spelling of 54806661 in words is "fifty-four million, eight hundred six thousand, six hundred sixty-one".