55434242 has 8 divisors (see below), whose sum is σ = 83240256. Its totient is φ = 27687492.

The previous prime is 55434241. The next prime is 55434257. The reversal of 55434242 is 24243455.

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

It is a super-2 number, since 2×55434242² = 6145910372229128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55434241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12398 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (10405032).

Almost surely, 2^55434242 is an apocalyptic number.

55434242 is a deficient number, since it is larger than the sum of its proper divisors (27806014).

55434242 is a wasteful number, since it uses less digits than its factorization.

55434242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29632.

The product of its digits is 19200, while the sum is 29.

The square root of 55434242 is about 7445.4175168354. The cubic root of 55434242 is about 381.2934730683.

Adding to 55434242 its reverse (24243455), we get a palindrome (79677697).

The spelling of 55434242 in words is "fifty-five million, four hundred thirty-four thousand, two hundred forty-two".