55506242 has 8 divisors (see below), whose sum is σ = 90828432. Its totient is φ = 25230100.

The previous prime is 55506229. The next prime is 55506247. The reversal of 55506242 is 24260555.

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 (55506247) 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, 1261484 + ... + 1261527.

It is an arithmetic number, because the mean of its divisors is an integer number (11353554).

Almost surely, 2^55506242 is an apocalyptic number.

55506242 is a deficient number, since it is larger than the sum of its proper divisors (35322190).

55506242 is a wasteful number, since it uses less digits than its factorization.

55506242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523024.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 55506242 is about 7450.2511367067. The cubic root of 55506242 is about 381.4584809042.

Adding to 55506242 its reverse (24260555), we get a palindrome (79766797).

The spelling of 55506242 in words is "fifty-five million, five hundred six thousand, two hundred forty-two".