54220313 has 12 divisors (see below), whose sum is σ = 63786420. Its totient is φ = 45948672.

The previous prime is 54220303. The next prime is 54220321. The reversal of 54220313 is 31302245.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8684809 + 45535504 = 2947^2 + 6748^2 .

It is not a de Polignac number, because 54220313 - 2⁶ = 54220249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54220303) 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, 1856 + ... + 10577.

It is an arithmetic number, because the mean of its divisors is an integer number (5315535).

Almost surely, 2^54220313 is an apocalyptic number.

It is an amenable number.

54220313 is a deficient number, since it is larger than the sum of its proper divisors (9566107).

54220313 is a wasteful number, since it uses less digits than its factorization.

54220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536 (or 12529 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 54220313 is about 7363.4443706733. Note that the first 3 decimals coincide. The cubic root of 54220313 is about 378.4896489441.

Adding to 54220313 its reverse (31302245), we get a palindrome (85522558).

The spelling of 54220313 in words is "fifty-four million, two hundred twenty thousand, three hundred thirteen".