54818661 has 8 divisors (see below), whose sum is σ = 73667584. Its totient is φ = 36257760.

The previous prime is 54818657. The next prime is 54818669. The reversal of 54818661 is 16681845.

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

It is not a de Polignac number, because 54818661 - 2² = 54818657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54818669) 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, 71560 + ... + 72321.

It is an arithmetic number, because the mean of its divisors is an integer number (9208448).

Almost surely, 2^54818661 is an apocalyptic number.

It is an amenable number.

54818661 is a deficient number, since it is larger than the sum of its proper divisors (18848923).

54818661 is a wasteful number, since it uses less digits than its factorization.

54818661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144011.

The product of its digits is 46080, while the sum is 39.

The square root of 54818661 is about 7403.9625201645. The cubic root of 54818661 is about 379.8768321969.

The spelling of 54818661 in words is "fifty-four million, eight hundred eighteen thousand, six hundred sixty-one".