55842130 has 16 divisors (see below), whose sum is σ = 100747800. Its totient is φ = 22285312.

The previous prime is 55842119. The next prime is 55842133. The reversal of 55842130 is 3124855.

It can be written as a sum of positive squares in 4 ways, for example, as 32387481 + 23454649 = 5691^2 + 4843^2 .

It is not an unprimeable number, because it can be changed into a prime (55842133) 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, 1729 + ... + 10708.

Almost surely, 2^55842130 is an apocalyptic number.

55842130 is a deficient number, since it is larger than the sum of its proper divisors (44905670).

55842130 is a wasteful number, since it uses less digits than its factorization.

55842130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12893.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 55842130 is about 7472.7591959062. The cubic root of 55842130 is about 382.2263809878.

Adding to 55842130 its reverse (3124855), we get a palindrome (58966985).

The spelling of 55842130 in words is "fifty-five million, eight hundred forty-two thousand, one hundred thirty".