5551555201 has 4 divisors (see below), whose sum is σ = 5552972100. Its totient is φ = 5550138304.

The previous prime is 5551555199. The next prime is 5551555213. The reversal of 5551555201 is 1025551555.

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 1897473600 + 3654081601 = 43560^2 + 60449^2 .

It is a cyclic number.

It is not a de Polignac number, because 5551555201 - 2¹ = 5551555199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5551555271) 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, 702556 + ... + 710413.

It is an arithmetic number, because the mean of its divisors is an integer number (1388243025).

Almost surely, 2^5551555201 is an apocalyptic number.

It is an amenable number.

5551555201 is a deficient number, since it is larger than the sum of its proper divisors (1416899).

5551555201 is a wasteful number, since it uses less digits than its factorization.

5551555201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416898.

The product of its (nonzero) digits is 31250, while the sum is 34.

The square root of 5551555201 is about 74508.7592233289. The cubic root of 5551555201 is about 1770.6724121254.

The spelling of 5551555201 in words is "five billion, five hundred fifty-one million, five hundred fifty-five thousand, two hundred one".