5521100401 has 8 divisors (see below), whose sum is σ = 5533170920. Its totient is φ = 5509043712.

The previous prime is 5521100381. The next prime is 5521100491. The reversal of 5521100401 is 1040011255.

It can be written as a sum of positive squares in 4 ways, for example, as 635090401 + 4886010000 = 25201^2 + 69900^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5521100401 - 2²³ = 5512711793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5521100491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221121 + ... + 1225633.

It is an arithmetic number, because the mean of its divisors is an integer number (691646365).

Almost surely, 2^5521100401 is an apocalyptic number.

It is an amenable number.

5521100401 is a deficient number, since it is larger than the sum of its proper divisors (12070519).

5521100401 is a wasteful number, since it uses less digits than its factorization.

5521100401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 5521100401 is about 74304.1075647908. The cubic root of 5521100401 is about 1767.4286133323.

Adding to 5521100401 its reverse (1040011255), we get a palindrome (6561111656).

The spelling of 5521100401 in words is "five billion, five hundred twenty-one million, one hundred thousand, four hundred one".