55351111242 has 32 divisors (see below), whose sum is σ = 132017559552. Its totient is φ = 15127011504.

The previous prime is 55351111213. The next prime is 55351111303. The reversal of 55351111242 is 24211115355.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28648678 + ... + 28650609.

It is an arithmetic number, because the mean of its divisors is an integer number (4125548736).

Almost surely, 2^55351111242 is an apocalyptic number.

55351111242 is an abundant number, since it is smaller than the sum of its proper divisors (76666448310).

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

55351111242 is a wasteful number, since it uses less digits than its factorization.

55351111242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57299322.

The product of its digits is 6000, while the sum is 30.

Adding to 55351111242 its reverse (24211115355), we get a palindrome (79562226597).

The spelling of 55351111242 in words is "fifty-five billion, three hundred fifty-one million, one hundred eleven thousand, two hundred forty-two".