55497479455 has 48 divisors (see below), whose sum is σ = 78822162720. Its totient is φ = 37343313920.

The previous prime is 55497479417. The next prime is 55497479459.

55497479455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55497479455 - 2¹¹ = 55497477407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55497479459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 561087 + ... + 652543.

It is an arithmetic number, because the mean of its divisors is an integer number (1642128390).

Almost surely, 2^55497479455 is an apocalyptic number.

55497479455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55497479455 is a deficient number, since it is larger than the sum of its proper divisors (23324683265).

55497479455 is a wasteful number, since it uses less digits than its factorization.

55497479455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91560 (or 91549 counting only the distinct ones).

The product of its digits is 158760000, while the sum is 64.

The spelling of 55497479455 in words is "fifty-five billion, four hundred ninety-seven million, four hundred seventy-nine thousand, four hundred fifty-five".