5611728401 has 4 divisors (see below), whose sum is σ = 5647472052. Its totient is φ = 5575984752.

The previous prime is 5611728389. The next prime is 5611728449. The reversal of 5611728401 is 1048271165.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1489960000 + 4121768401 = 38600^2 + 64201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5611728401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5611778401) 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, 17871590 + ... + 17871903.

It is an arithmetic number, because the mean of its divisors is an integer number (1411868013).

Almost surely, 2^5611728401 is an apocalyptic number.

It is an amenable number.

5611728401 is a deficient number, since it is larger than the sum of its proper divisors (35743651).

5611728401 is a wasteful number, since it uses less digits than its factorization.

5611728401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35743650.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 5611728401 is about 74911.4704234271. The cubic root of 5611728401 is about 1777.0468645126.

Adding to 5611728401 its reverse (1048271165), we get a palindrome (6659999566).

The spelling of 5611728401 in words is "five billion, six hundred eleven million, seven hundred twenty-eight thousand, four hundred one".