5545909591 has 4 divisors (see below), whose sum is σ = 5547373992. Its totient is φ = 5544445192.

The previous prime is 5545909583. The next prime is 5545909597. The reversal of 5545909591 is 1959095455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5545909591 - 2³ = 5545909583 is a prime.

It is a super-2 number, since 2×5545909591² = 61514226383091574562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5545909597) 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, 726505 + ... + 734098.

It is an arithmetic number, because the mean of its divisors is an integer number (1386843498).

Almost surely, 2^5545909591 is an apocalyptic number.

5545909591 is a deficient number, since it is larger than the sum of its proper divisors (1464401).

5545909591 is a wasteful number, since it uses less digits than its factorization.

5545909591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464400.

The product of its (nonzero) digits is 1822500, while the sum is 52.

The square root of 5545909591 is about 74470.8640409120. The cubic root of 5545909591 is about 1770.0719847941.

The spelling of 5545909591 in words is "five billion, five hundred forty-five million, nine hundred nine thousand, five hundred ninety-one".