54523220 has 24 divisors (see below), whose sum is σ = 116661384. Its totient is φ = 21397376.

The previous prime is 54523211. The next prime is 54523247. The reversal of 54523220 is 2232545.

It can be written as a sum of positive squares in 4 ways, for example, as 25060036 + 29463184 = 5006^2 + 5428^2 .

It is a congruent number.

It is an unprimeable number.

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, 24659 + ... + 26778.

It is an arithmetic number, because the mean of its divisors is an integer number (4860891).

Almost surely, 2^54523220 is an apocalyptic number.

It is an amenable number.

54523220 is an abundant number, since it is smaller than the sum of its proper divisors (62138164).

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

54523220 is a wasteful number, since it uses less digits than its factorization.

54523220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51499 (or 51497 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 54523220 is about 7383.9840194843. The cubic root of 54523220 is about 379.1931634397.

Adding to 54523220 its reverse (2232545), we get a palindrome (56755765).

The spelling of 54523220 in words is "fifty-four million, five hundred twenty-three thousand, two hundred twenty".