54266721 has 8 divisors (see below), whose sum is σ = 72395904. Its totient is φ = 36157680.

The previous prime is 54266713. The next prime is 54266761. The reversal of 54266721 is 12766245.

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

It is not a de Polignac number, because 54266721 - 2³ = 54266713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54266711) 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, 3160 + ... + 10886.

It is an arithmetic number, because the mean of its divisors is an integer number (9049488).

Almost surely, 2^54266721 is an apocalyptic number.

It is an amenable number.

54266721 is a deficient number, since it is larger than the sum of its proper divisors (18129183).

54266721 is a wasteful number, since it uses less digits than its factorization.

54266721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10071.

The product of its digits is 20160, while the sum is 33.

The square root of 54266721 is about 7366.5949393190. The cubic root of 54266721 is about 378.5976031878.

The spelling of 54266721 in words is "fifty-four million, two hundred sixty-six thousand, seven hundred twenty-one".