55145013423242 has 32 divisors (see below), whose sum is σ = 83813995054080. Its totient is φ = 27207431147520.

The previous prime is 55145013423223. The next prime is 55145013423257. The reversal of 55145013423242 is 24232431054155.

It is a self number, because there is not a number n which added to its sum of digits gives 55145013423242.

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, 3566709392 + ... + 3566724852.

It is an arithmetic number, because the mean of its divisors is an integer number (2619187345440).

Almost surely, 2^{55145013423242} is an apocalyptic number.

55145013423242 is a deficient number, since it is larger than the sum of its proper divisors (28668981630838).

55145013423242 is a wasteful number, since it uses less digits than its factorization.

55145013423242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27398.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 55145013423242 its reverse (24232431054155), we get a palindrome (79377444477397).

The spelling of 55145013423242 in words is "fifty-five trillion, one hundred forty-five billion, thirteen million, four hundred twenty-three thousand, two hundred forty-two".