55698489655 has 4 divisors (see below), whose sum is σ = 66838187592. Its totient is φ = 44558791720.

The previous prime is 55698489653. The next prime is 55698489673.

It is a happy number.

55698489655 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55698489655 - 2¹ = 55698489653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55698489653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5569848961 + ... + 5569848970.

It is an arithmetic number, because the mean of its divisors is an integer number (16709546898).

Almost surely, 2^55698489655 is an apocalyptic number.

55698489655 is a deficient number, since it is larger than the sum of its proper divisors (11139697937).

55698489655 is a wasteful number, since it uses less digits than its factorization.

55698489655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11139697936.

The product of its digits is 466560000, while the sum is 70.

The spelling of 55698489655 in words is "fifty-five billion, six hundred ninety-eight million, four hundred eighty-nine thousand, six hundred fifty-five".