55297154842 has 4 divisors (see below), whose sum is σ = 82945732266. Its totient is φ = 27648577420.

The previous prime is 55297154839. The next prime is 55297154873. The reversal of 55297154842 is 24845179255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51669381481 + 3627773361 = 227309^2 + 60231^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55297154842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13824288709 + ... + 13824288712.

Almost surely, 2^55297154842 is an apocalyptic number.

55297154842 is a deficient number, since it is larger than the sum of its proper divisors (27648577424).

55297154842 is a wasteful number, since it uses less digits than its factorization.

55297154842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27648577423.

The product of its digits is 4032000, while the sum is 52.

The spelling of 55297154842 in words is "fifty-five billion, two hundred ninety-seven million, one hundred fifty-four thousand, eight hundred forty-two".