55021554242 has 8 divisors (see below), whose sum is σ = 82596864000. Its totient is φ = 27489266244.

The previous prime is 55021554239. The next prime is 55021554251. The reversal of 55021554242 is 24245512055.

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, 10752242 + ... + 10757357.

It is an arithmetic number, because the mean of its divisors is an integer number (10324608000).

Almost surely, 2^55021554242 is an apocalyptic number.

55021554242 is a deficient number, since it is larger than the sum of its proper divisors (27575309758).

55021554242 is a wasteful number, since it uses less digits than its factorization.

55021554242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21510880.

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 55021554242 in words is "fifty-five billion, twenty-one million, five hundred fifty-four thousand, two hundred forty-two".