55004242 has 8 divisors (see below), whose sum is σ = 85351500. Its totient is φ = 26553744.

The previous prime is 55004239. The next prime is 55004251. The reversal of 55004242 is 24240055.

It can be written as a sum of positive squares in 2 ways, for example, as 54774801 + 229441 = 7401^2 + 479^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474117 + ... + 474232.

Almost surely, 2^55004242 is an apocalyptic number.

55004242 is a deficient number, since it is larger than the sum of its proper divisors (30347258).

55004242 is a wasteful number, since it uses less digits than its factorization.

55004242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948380.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 55004242 is about 7416.4844771630. The cubic root of 55004242 is about 380.3050228698.

Adding to 55004242 its reverse (24240055), we get a palindrome (79244297).

The spelling of 55004242 in words is "fifty-five million, four thousand, two hundred forty-two".