54047217 has 32 divisors (see below), whose sum is σ = 86630400. Its totient is φ = 29304000.

The previous prime is 54047209. The next prime is 54047219. The reversal of 54047217 is 71274045.

It is not a de Polignac number, because 54047217 - 2³ = 54047209 is a prime.

It is a super-2 number, since 2×54047217² = 5842203330890178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54047219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71592 + ... + 72342.

It is an arithmetic number, because the mean of its divisors is an integer number (2707200).

Almost surely, 2^54047217 is an apocalyptic number.

It is an amenable number.

54047217 is a deficient number, since it is larger than the sum of its proper divisors (32583183).

54047217 is a wasteful number, since it uses less digits than its factorization.

54047217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 54047217 is about 7351.6812362887. The cubic root of 54047217 is about 378.0864489714.

It can be divided in two parts, 5404 and 7217, that added together give a palindrome (12621).

The spelling of 54047217 in words is "fifty-four million, forty-seven thousand, two hundred seventeen".