55553242 has 8 divisors (see below), whose sum is σ = 83386836. Its totient is φ = 27757632.

The previous prime is 55553233. The next prime is 55553261. The reversal of 55553242 is 24235555.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50395801 + 5157441 = 7099^2 + 2271^2 .

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, 5503 + ... + 11890.

Almost surely, 2^55553242 is an apocalyptic number.

55553242 is a deficient number, since it is larger than the sum of its proper divisors (27833594).

55553242 is a wasteful number, since it uses less digits than its factorization.

55553242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18992.

The product of its digits is 30000, while the sum is 31.

The square root of 55553242 is about 7453.4047253587. The cubic root of 55553242 is about 381.5661173909.

Adding to 55553242 its reverse (24235555), we get a palindrome (79788797).

The spelling of 55553242 in words is "fifty-five million, five hundred fifty-three thousand, two hundred forty-two".