55204242 has 16 divisors (see below), whose sum is σ = 113970432. Its totient is φ = 17807760.

The previous prime is 55204231. The next prime is 55204243. The reversal of 55204242 is 24240255.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55204243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148213 + ... + 148584.

It is an arithmetic number, because the mean of its divisors is an integer number (7123152).

Almost surely, 2^55204242 is an apocalyptic number.

55204242 is an abundant number, since it is smaller than the sum of its proper divisors (58766190).

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

55204242 is a wasteful number, since it uses less digits than its factorization.

55204242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296833.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 55204242 is about 7429.9557199219. The cubic root of 55204242 is about 380.7654055575.

Adding to 55204242 its reverse (24240255), we get a palindrome (79444497).

The spelling of 55204242 in words is "fifty-five million, two hundred four thousand, two hundred forty-two".