55155400022 has 8 divisors (see below), whose sum is σ = 82735212672. Its totient is φ = 27576995800.

The previous prime is 55155400009. The next prime is 55155400081. The reversal of 55155400022 is 22000455155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248054 + ... + 414537.

It is an arithmetic number, because the mean of its divisors is an integer number (10341901584).

Almost surely, 2^55155400022 is an apocalyptic number.

55155400022 is a deficient number, since it is larger than the sum of its proper divisors (27579812650).

55155400022 is a wasteful number, since it uses less digits than its factorization.

55155400022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704214.

The product of its (nonzero) digits is 10000, while the sum is 29.

Adding to 55155400022 its reverse (22000455155), we get a palindrome (77155855177).

The spelling of 55155400022 in words is "fifty-five billion, one hundred fifty-five million, four hundred thousand, twenty-two".