54210661 has 16 divisors (see below), whose sum is σ = 58037248. Its totient is φ = 50544000.

The previous prime is 54210649. The next prime is 54210683. The reversal of 54210661 is 16601245.

54210661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54210661 - 2¹¹ = 54208613 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 (54210641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173041 + ... + 173353.

It is an arithmetic number, because the mean of its divisors is an integer number (3627328).

Almost surely, 2^54210661 is an apocalyptic number.

It is an amenable number.

54210661 is a deficient number, since it is larger than the sum of its proper divisors (3826587).

54210661 is a wasteful number, since it uses less digits than its factorization.

54210661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 54210661 is about 7362.7889416987. The cubic root of 54210661 is about 378.4671887339.

The spelling of 54210661 in words is "fifty-four million, two hundred ten thousand, six hundred sixty-one".