55982420 has 24 divisors (see below), whose sum is σ = 126606984. Its totient is φ = 20670336.

The previous prime is 55982413. The next prime is 55982467. The reversal of 55982420 is 2428955.

It is a happy number.

55982420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1547536 + 54434884 = 1244^2 + 7378^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107399 + ... + 107918.

It is an arithmetic number, because the mean of its divisors is an integer number (5275291).

Almost surely, 2^55982420 is an apocalyptic number.

It is an amenable number.

55982420 is an abundant number, since it is smaller than the sum of its proper divisors (70624564).

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

55982420 is a wasteful number, since it uses less digits than its factorization.

55982420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215339 (or 215337 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 55982420 is about 7482.1400681890. The cubic root of 55982420 is about 382.5461974475.

The spelling of 55982420 in words is "fifty-five million, nine hundred eighty-two thousand, four hundred twenty".