9554555455 has 4 divisors (see below), whose sum is σ = 11465466552. Its totient is φ = 7643644360.

The previous prime is 9554555449. The next prime is 9554555467. The reversal of 9554555455 is 5545554559.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5545554559 = 8161 ⋅679519.

It is not a de Polignac number, because 9554555455 - 2²⁷ = 9420337727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955455541 + ... + 955455550.

It is an arithmetic number, because the mean of its divisors is an integer number (2866366638).

Almost surely, 2^9554555455 is an apocalyptic number.

9554555455 is a deficient number, since it is larger than the sum of its proper divisors (1910911097).

9554555455 is a wasteful number, since it uses less digits than its factorization.

9554555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910911096.

The product of its digits is 11250000, while the sum is 52.

The square root of 9554555455 is about 97747.4063850290. The cubic root of 9554555455 is about 2121.9582190649.

The spelling of 9554555455 in words is "nine billion, five hundred fifty-four million, five hundred fifty-five thousand, four hundred fifty-five".