54621330 has 16 divisors (see below), whose sum is σ = 131091264. Its totient is φ = 14565680.

The previous prime is 54621293. The next prime is 54621337. The reversal of 54621330 is 3312645.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 54621330.

It is not an unprimeable number, because it can be changed into a prime (54621337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910326 + ... + 910385.

It is an arithmetic number, because the mean of its divisors is an integer number (8193204).

Almost surely, 2^54621330 is an apocalyptic number.

54621330 is an abundant number, since it is smaller than the sum of its proper divisors (76469934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54621330 is a wasteful number, since it uses less digits than its factorization.

54621330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820721.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 54621330 is about 7390.6244661733. The cubic root of 54621330 is about 379.4204693422.

Adding to 54621330 its reverse (3312645), we get a palindrome (57933975).

The spelling of 54621330 in words is "fifty-four million, six hundred twenty-one thousand, three hundred thirty".