55057211122 has 4 divisors (see below), whose sum is σ = 82585816686. Its totient is φ = 27528605560.

The previous prime is 55057211093. The next prime is 55057211149. The reversal of 55057211122 is 22111275055.

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., 45347276601 + 9709934521 = 212949^2 + 98539^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13764302779 + ... + 13764302782.

Almost surely, 2^55057211122 is an apocalyptic number.

55057211122 is a deficient number, since it is larger than the sum of its proper divisors (27528605564).

55057211122 is a wasteful number, since it uses less digits than its factorization.

55057211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27528605563.

The product of its (nonzero) digits is 7000, while the sum is 31.

Adding to 55057211122 its reverse (22111275055), we get a palindrome (77168486177).

The spelling of 55057211122 in words is "fifty-five billion, fifty-seven million, two hundred eleven thousand, one hundred twenty-two".