55405250455 has 8 divisors (see below), whose sum is σ = 66493741104. Its totient is φ = 44319240000.

The previous prime is 55405250441. The next prime is 55405250497.

55405250455 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55405250455 - 2²⁷ = 55271032727 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 570541 + ... + 660550.

It is an arithmetic number, because the mean of its divisors is an integer number (8311717638).

Almost surely, 2^55405250455 is an apocalyptic number.

55405250455 is a deficient number, since it is larger than the sum of its proper divisors (11088490649).

55405250455 is a wasteful number, since it uses less digits than its factorization.

55405250455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240097.

The product of its (nonzero) digits is 500000, while the sum is 40.

Adding to 55405250455 its product of nonzero digits (500000), we get a palindrome (55405750455).

The spelling of 55405250455 in words is "fifty-five billion, four hundred five million, two hundred fifty thousand, four hundred fifty-five".