54221630 has 16 divisors (see below), whose sum is σ = 102736080. Its totient is φ = 20547072.

The previous prime is 54221617. The next prime is 54221633. The reversal of 54221630 is 3612245.

It is a junction number, because it is equal to n+sod(n) for n = 54221596 and 54221605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54221633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142499 + ... + 142878.

It is an arithmetic number, because the mean of its divisors is an integer number (6421005).

Almost surely, 2^54221630 is an apocalyptic number.

54221630 is a deficient number, since it is larger than the sum of its proper divisors (48514450).

54221630 is a wasteful number, since it uses less digits than its factorization.

54221630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285403.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 54221630 is about 7363.5337983878. The cubic root of 54221630 is about 378.4927133973.

Adding to 54221630 its reverse (3612245), we get a palindrome (57833875).

The spelling of 54221630 in words is "fifty-four million, two hundred twenty-one thousand, six hundred thirty".