55530420355242 has 96 divisors (see below), whose sum is σ = 140373738969984. Its totient is φ = 15536990505600.

The previous prime is 55530420355183. The next prime is 55530420355301. The reversal of 55530420355242 is 24255302403555.

55530420355242 is a `hidden beast` number, since 5 + 5 + 5 + 30 + 4 + 20 + 3 + 552 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (55530420355183) and next prime (55530420355301).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14169109 + ... + 17658552.

It is an arithmetic number, because the mean of its divisors is an integer number (1462226447604).

Almost surely, 2^{55530420355242} is an apocalyptic number.

55530420355242 is an abundant number, since it is smaller than the sum of its proper divisors (84843318614742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55530420355242 is a wasteful number, since it uses less digits than its factorization.

55530420355242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31827964 (or 31827961 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 45.

Adding to 55530420355242 its reverse (24255302403555), we get a palindrome (79785722758797).

The spelling of 55530420355242 in words is "fifty-five trillion, five hundred thirty billion, four hundred twenty million, three hundred fifty-five thousand, two hundred forty-two".