54542420 has 12 divisors (see below), whose sum is σ = 114539124. Its totient is φ = 21816960.

The previous prime is 54542377. The next prime is 54542471. The reversal of 54542420 is 2424545.

It can be written as a sum of positive squares in 2 ways, for example, as 37136836 + 17405584 = 6094^2 + 4172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 54542420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363541 + ... + 1363580.

It is an arithmetic number, because the mean of its divisors is an integer number (9544927).

Almost surely, 2^54542420 is an apocalyptic number.

It is an amenable number.

54542420 is an abundant number, since it is smaller than the sum of its proper divisors (59996704).

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

54542420 is a wasteful number, since it uses less digits than its factorization.

54542420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727130 (or 2727128 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 54542420 is about 7385.2840162041. The cubic root of 54542420 is about 379.2376683577.

Adding to 54542420 its reverse (2424545), we get a palindrome (56966965).

The spelling of 54542420 in words is "fifty-four million, five hundred forty-two thousand, four hundred twenty".