55554431003 has 4 divisors (see below), whose sum is σ = 55908281040. Its totient is φ = 55200580968.

The previous prime is 55554430991. The next prime is 55554431039. The reversal of 55554431003 is 30013445555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30013445555 = 5 ⋅6002689111.

It is a cyclic number.

It is not a de Polignac number, because 55554431003 - 2¹⁰ = 55554429979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55554431503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176924783 + ... + 176925096.

It is an arithmetic number, because the mean of its divisors is an integer number (13977070260).

Almost surely, 2^55554431003 is an apocalyptic number.

55554431003 is a deficient number, since it is larger than the sum of its proper divisors (353850037).

55554431003 is a wasteful number, since it uses less digits than its factorization.

55554431003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353850036.

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 55554431003 its reverse (30013445555), we get a palindrome (85567876558).

The spelling of 55554431003 in words is "fifty-five billion, five hundred fifty-four million, four hundred thirty-one thousand, three".