55626431603 has 4 divisors (see below), whose sum is σ = 55648982280. Its totient is φ = 55603880928.

The previous prime is 55626431579. The next prime is 55626431633. The reversal of 55626431603 is 30613462655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30613462655 = 5 ⋅6122692531.

It is a cyclic number.

It is not a de Polignac number, because 55626431603 - 2¹⁶ = 55626366067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55626431633) 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, 11271638 + ... + 11276571.

It is an arithmetic number, because the mean of its divisors is an integer number (13912245570).

Almost surely, 2^55626431603 is an apocalyptic number.

55626431603 is a deficient number, since it is larger than the sum of its proper divisors (22550677).

55626431603 is a wasteful number, since it uses less digits than its factorization.

55626431603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22550676.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 55626431603 in words is "fifty-five billion, six hundred twenty-six million, four hundred thirty-one thousand, six hundred three".