55554042 has 16 divisors (see below), whose sum is σ = 112930272. Its totient is φ = 18214320.

The previous prime is 55554041. The next prime is 55554049. The reversal of 55554042 is 24045555.

It is not an unprimeable number, because it can be changed into a prime (55554041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75528 + ... + 76259.

It is an arithmetic number, because the mean of its divisors is an integer number (7058142).

Almost surely, 2^55554042 is an apocalyptic number.

55554042 is an abundant number, since it is smaller than the sum of its proper divisors (57376230).

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

55554042 is a wasteful number, since it uses less digits than its factorization.

55554042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151853.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 55554042 is about 7453.4583919145. The cubic root of 55554042 is about 381.5679489758.

Adding to 55554042 its reverse (24045555), we get a palindrome (79599597).

The spelling of 55554042 in words is "fifty-five million, five hundred fifty-four thousand, forty-two".