5611432421 has 6 divisors (see below), whose sum is σ = 6527584710. Its totient is φ = 4809799176.

The previous prime is 5611432417. The next prime is 5611432439. The reversal of 5611432421 is 1242341165.

It can be written as a sum of positive squares in only one way, i.e., 3019502500 + 2591929921 = 54950^2 + 50911^2 .

It is not a de Polignac number, because 5611432421 - 2² = 5611432417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611432921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57259466 + ... + 57259563.

It is an arithmetic number, because the mean of its divisors is an integer number (1087930785).

Almost surely, 2^5611432421 is an apocalyptic number.

It is an amenable number.

5611432421 is a deficient number, since it is larger than the sum of its proper divisors (916152289).

5611432421 is a wasteful number, since it uses less digits than its factorization.

5611432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114519043 (or 114519036 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 5611432421 is about 74909.4948654708. The cubic root of 5611432421 is about 1777.0156216381.

Adding to 5611432421 its reverse (1242341165), we get a palindrome (6853773586).

The spelling of 5611432421 in words is "five billion, six hundred eleven million, four hundred thirty-two thousand, four hundred twenty-one".