54216613 has 8 divisors (see below), whose sum is σ = 61053696. Its totient is φ = 47697600.

The previous prime is 54216611. The next prime is 54216623. The reversal of 54216613 is 31661245.

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

It is a cyclic number.

It is not a de Polignac number, because 54216613 - 2¹ = 54216611 is a prime.

It is a super-2 number, since 2×54216613² = 5878882250383538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54216611) 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, 79156 + ... + 79837.

It is an arithmetic number, because the mean of its divisors is an integer number (7631712).

Almost surely, 2^54216613 is an apocalyptic number.

It is an amenable number.

54216613 is a deficient number, since it is larger than the sum of its proper divisors (6837083).

54216613 is a wasteful number, since it uses less digits than its factorization.

54216613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159035.

The product of its digits is 4320, while the sum is 28.

The square root of 54216613 is about 7363.1931252684. The cubic root of 54216613 is about 378.4810393568.

Adding to 54216613 its reverse (31661245), we get a palindrome (85877858).

The spelling of 54216613 in words is "fifty-four million, two hundred sixteen thousand, six hundred thirteen".