1055311205 has 24 divisors (see below), whose sum is σ = 1443474720. Its totient is φ = 738279360.

The previous prime is 1055311183. The next prime is 1055311223. The reversal of 1055311205 is 5021135501.

It is a happy number.

It is not a de Polignac number, because 1055311205 - 2¹⁰ = 1055310181 is a prime.

It is a super-2 number, since 2×1055311205² = 2227363478797104050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16811 + ... + 48920.

It is an arithmetic number, because the mean of its divisors is an integer number (60144780).

Almost surely, 2^1055311205 is an apocalyptic number.

It is an amenable number.

1055311205 is a deficient number, since it is larger than the sum of its proper divisors (388163515).

1055311205 is a wasteful number, since it uses less digits than its factorization.

1055311205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65781 (or 65768 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1055311205 is about 32485.5537893384. The cubic root of 1055311205 is about 1018.1072180421.

Adding to 1055311205 its reverse (5021135501), we get a palindrome (6076446706).

The spelling of 1055311205 in words is "one billion, fifty-five million, three hundred eleven thousand, two hundred five".