1055331005 has 4 divisors (see below), whose sum is σ = 1266397212. Its totient is φ = 844264800.

The previous prime is 1055331001. The next prime is 1055331019. The reversal of 1055331005 is 5001335501.

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 559511716 + 495819289 = 23654^2 + 22267^2 .

It is not a de Polignac number, because 1055331005 - 2² = 1055331001 is a prime.

It is a super-2 number, since 2×1055331005² = 2227447060228620050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055331001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105533096 + ... + 105533105.

It is an arithmetic number, because the mean of its divisors is an integer number (316599303).

Almost surely, 2^1055331005 is an apocalyptic number.

It is an amenable number.

1055331005 is a deficient number, since it is larger than the sum of its proper divisors (211066207).

1055331005 is an equidigital number, since it uses as much as digits as its factorization.

1055331005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211066206.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 1055331005 is about 32485.8585387550. The cubic root of 1055331005 is about 1018.1135853256.

Adding to 1055331005 its reverse (5001335501), we get a palindrome (6056666506).

The spelling of 1055331005 in words is "one billion, fifty-five million, three hundred thirty-one thousand, five".