55021055342 has 32 divisors (see below), whose sum is σ = 94917398400. Its totient is φ = 23657205600.

The previous prime is 55021055333. The next prime is 55021055347. The reversal of 55021055342 is 24355012055.

It is a junction number, because it is equal to n+sod(n) for n = 55021055299 and 55021055308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55021055347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175592 + ... + 375332.

It is an arithmetic number, because the mean of its divisors is an integer number (2966168700).

Almost surely, 2^55021055342 is an apocalyptic number.

55021055342 is a deficient number, since it is larger than the sum of its proper divisors (39896343058).

55021055342 is a wasteful number, since it uses less digits than its factorization.

55021055342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200432.

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 55021055342 its reverse (24355012055), we get a palindrome (79376067397).

The spelling of 55021055342 in words is "fifty-five billion, twenty-one million, fifty-five thousand, three hundred forty-two".