55440404455 has 8 divisors (see below), whose sum is σ = 66618514800. Its totient is φ = 44292303936.

The previous prime is 55440404449. The next prime is 55440404479.

55440404455 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 55440404455 - 2¹⁵ = 55440371687 is a prime.

It is a super-2 number, since 2×55440404455² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7498390 + ... + 7505779.

It is an arithmetic number, because the mean of its divisors is an integer number (8327314350).

Almost surely, 2^55440404455 is an apocalyptic number.

55440404455 is a deficient number, since it is larger than the sum of its proper divisors (11178110345).

55440404455 is a wasteful number, since it uses less digits than its factorization.

55440404455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15004913.

The product of its (nonzero) digits is 640000, while the sum is 40.

The spelling of 55440404455 in words is "fifty-five billion, four hundred forty million, four hundred four thousand, four hundred fifty-five".