55055742 has 16 divisors (see below), whose sum is σ = 125841792. Its totient is φ = 15730200.

The previous prime is 55055731. The next prime is 55055821. The reversal of 55055742 is 24755055.

55055742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55055742² = 6062269454341128, which contains 22 as substring.

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, 655384 + ... + 655467.

It is an arithmetic number, because the mean of its divisors is an integer number (7865112).

Almost surely, 2^55055742 is an apocalyptic number.

55055742 is an abundant number, since it is smaller than the sum of its proper divisors (70786050).

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

55055742 is a wasteful number, since it uses less digits than its factorization.

55055742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310863.

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 55055742 is about 7419.9556602449. The cubic root of 55055742 is about 380.4236779559.

The spelling of 55055742 in words is "fifty-five million, fifty-five thousand, seven hundred forty-two".