555242122 has 4 divisors (see below), whose sum is σ = 832863186. Its totient is φ = 277621060.

The previous prime is 555242071. The next prime is 555242123. The reversal of 555242122 is 221242555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 458002801 + 97239321 = 21401^2 + 9861^2 .

It is not an unprimeable number, because it can be changed into a prime (555242123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138810529 + ... + 138810532.

Almost surely, 2^555242122 is an apocalyptic number.

555242122 is a deficient number, since it is larger than the sum of its proper divisors (277621064).

555242122 is a wasteful number, since it uses less digits than its factorization.

555242122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277621063.

The product of its digits is 8000, while the sum is 28.

The square root of 555242122 is about 23563.5761717104. The cubic root of 555242122 is about 821.9160636367.

Adding to 555242122 its reverse (221242555), we get a palindrome (776484677).

It can be divided in two parts, 5552 and 42122, that added together give a palindrome (47674).

The spelling of 555242122 in words is "five hundred fifty-five million, two hundred forty-two thousand, one hundred twenty-two".