55340042 has 8 divisors (see below), whose sum is σ = 83041632. Its totient is φ = 27659500.

The previous prime is 55340041. The next prime is 55340069. The reversal of 55340042 is 24004355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55340041) 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 3 ways as a sum of consecutive naturals, for example, 7667 + ... + 13017.

It is an arithmetic number, because the mean of its divisors is an integer number (10380204).

Almost surely, 2^55340042 is an apocalyptic number.

55340042 is a deficient number, since it is larger than the sum of its proper divisors (27701590).

55340042 is a wasteful number, since it uses less digits than its factorization.

55340042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10524.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 55340042 is about 7439.0887882858. The cubic root of 55340042 is about 381.0773719228.

Adding to 55340042 its reverse (24004355), we get a palindrome (79344397).

The spelling of 55340042 in words is "fifty-five million, three hundred forty thousand, forty-two".