5555211205 has 4 divisors (see below), whose sum is σ = 6666253452. Its totient is φ = 4444168960.

The previous prime is 5555211197. The next prime is 5555211209. The reversal of 5555211205 is 5021125555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5021125555 = 5 ⋅1004225111.

It can be written as a sum of positive squares in 2 ways, for example, as 1332031009 + 4223180196 = 36497^2 + 64986^2 .

It is not a de Polignac number, because 5555211205 - 2³ = 5555211197 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 (5555211209) 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, 555521116 + ... + 555521125.

It is an arithmetic number, because the mean of its divisors is an integer number (1666563363).

Almost surely, 2^5555211205 is an apocalyptic number.

It is an amenable number.

5555211205 is a deficient number, since it is larger than the sum of its proper divisors (1111042247).

5555211205 is a wasteful number, since it uses less digits than its factorization.

5555211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111042246.

The product of its (nonzero) digits is 12500, while the sum is 31.

The square root of 5555211205 is about 74533.2892404461. The cubic root of 5555211205 is about 1771.0610218414.

The spelling of 5555211205 in words is "five billion, five hundred fifty-five million, two hundred eleven thousand, two hundred five".