555042122 has 4 divisors (see below), whose sum is σ = 832563186. Its totient is φ = 277521060.

The previous prime is 555042119. The next prime is 555042139. The reversal of 555042122 is 221240555.

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., 417425761 + 137616361 = 20431^2 + 11731^2 .

It is a junction number, because it is equal to n+sod(n) for n = 555042091 and 555042100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138760529 + ... + 138760532.

Almost surely, 2^555042122 is an apocalyptic number.

555042122 is a deficient number, since it is larger than the sum of its proper divisors (277521064).

555042122 is a wasteful number, since it uses less digits than its factorization.

555042122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277521063.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 555042122 is about 23559.3319514794. The cubic root of 555042122 is about 821.8173661812.

Adding to 555042122 its reverse (221240555), we get a palindrome (776282677).

The spelling of 555042122 in words is "five hundred fifty-five million, forty-two thousand, one hundred twenty-two".