54885217 has 4 divisors (see below), whose sum is σ = 55035136. Its totient is φ = 54735300.

The previous prime is 54885211. The next prime is 54885239. The reversal of 54885217 is 71258845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54885217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54885217.

It is not an unprimeable number, because it can be changed into a prime (54885211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74409 + ... + 75142.

It is an arithmetic number, because the mean of its divisors is an integer number (13758784).

Almost surely, 2^54885217 is an apocalyptic number.

It is an amenable number.

54885217 is a deficient number, since it is larger than the sum of its proper divisors (149919).

54885217 is a wasteful number, since it uses less digits than its factorization.

54885217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149918.

The product of its digits is 89600, while the sum is 40.

The square root of 54885217 is about 7408.4557770159. The cubic root of 54885217 is about 380.0305077076.

The spelling of 54885217 in words is "fifty-four million, eight hundred eighty-five thousand, two hundred seventeen".