55426661198 has 4 divisors (see below), whose sum is σ = 83139991800. Its totient is φ = 27713330598.

The previous prime is 55426661197. The next prime is 55426661201. The reversal of 55426661198 is 89116662455.

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

It is a super-2 number, since 2×55426661198² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55426661197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13856665298 + ... + 13856665301.

It is an arithmetic number, because the mean of its divisors is an integer number (20784997950).

Almost surely, 2^55426661198 is an apocalyptic number.

55426661198 is a deficient number, since it is larger than the sum of its proper divisors (27713330602).

55426661198 is a wasteful number, since it uses less digits than its factorization.

55426661198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27713330601.

The product of its digits is 3110400, while the sum is 53.

The spelling of 55426661198 in words is "fifty-five billion, four hundred twenty-six million, six hundred sixty-one thousand, one hundred ninety-eight".