54221313 has 12 divisors (see below), whose sum is σ = 76799120. Its totient is φ = 34020672.

The previous prime is 54221309. The next prime is 54221333. The reversal of 54221313 is 31312245.

It is not a de Polignac number, because 54221313 - 2² = 54221309 is a prime.

It is a super-3 number, since 3×54221313³ (a number of 24 digits) contains 333 as substring.

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 54221313.

It is not an unprimeable number, because it can be changed into a prime (54221333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30403 + ... + 32136.

Almost surely, 2^54221313 is an apocalyptic number.

It is an amenable number.

54221313 is a deficient number, since it is larger than the sum of its proper divisors (22577807).

54221313 is a wasteful number, since it uses less digits than its factorization.

54221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62576 (or 62559 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 54221313 is about 7363.5122733652. The cubic root of 54221313 is about 378.4919757924.

Adding to 54221313 its reverse (31312245), we get a palindrome (85533558).

The spelling of 54221313 in words is "fifty-four million, two hundred twenty-one thousand, three hundred thirteen".