55489698455 has 32 divisors (see below), whose sum is σ = 73864189440. Its totient is φ = 39828412800.

The previous prime is 55489698449. The next prime is 55489698457.

55489698455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55489698455 - 2¹⁸ = 55489436311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55489698457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94964 + ... + 346406.

It is an arithmetic number, because the mean of its divisors is an integer number (2308255920).

Almost surely, 2^55489698455 is an apocalyptic number.

55489698455 is a deficient number, since it is larger than the sum of its proper divisors (18374490985).

55489698455 is a wasteful number, since it uses less digits than its factorization.

55489698455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251591.

The product of its digits is 311040000, while the sum is 68.

The spelling of 55489698455 in words is "fifty-five billion, four hundred eighty-nine million, six hundred ninety-eight thousand, four hundred fifty-five".