55253143442 has 16 divisors (see below), whose sum is σ = 94751648640. Its totient is φ = 23671925088.

The previous prime is 55253143433. The next prime is 55253143471. The reversal of 55253143442 is 24434135255.

55253143442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55253143396 and 55253143405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623078 + ... + 706209.

It is an arithmetic number, because the mean of its divisors is an integer number (5921978040).

Almost surely, 2^55253143442 is an apocalyptic number.

55253143442 is a deficient number, since it is larger than the sum of its proper divisors (39498505198).

55253143442 is a wasteful number, since it uses less digits than its factorization.

55253143442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332265.

The product of its digits is 288000, while the sum is 38.

Adding to 55253143442 its reverse (24434135255), we get a palindrome (79687278697).

The spelling of 55253143442 in words is "fifty-five billion, two hundred fifty-three million, one hundred forty-three thousand, four hundred forty-two".