1055531005 has 8 divisors (see below), whose sum is σ = 1300870872. Its totient is φ = 821602368.

The previous prime is 1055530999. The next prime is 1055531021. The reversal of 1055531005 is 5001355501.

It can be written as a sum of positive squares in 4 ways, for example, as 344882041 + 710648964 = 18571^2 + 26658^2 .

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 1055531005 - 2⁷ = 1055530877 is a prime.

It is a super-2 number, since 2×1055531005² = 2228291405032620050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2852602 + ... + 2852971.

It is an arithmetic number, because the mean of its divisors is an integer number (162608859).

Almost surely, 2^1055531005 is an apocalyptic number.

It is an amenable number.

1055531005 is a deficient number, since it is larger than the sum of its proper divisors (245339867).

1055531005 is an equidigital number, since it uses as much as digits as its factorization.

1055531005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705615.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 1055531005 is about 32488.9366554216. The cubic root of 1055531005 is about 1018.1778968558.

Adding to 1055531005 its reverse (5001355501), we get a palindrome (6056886506).

The spelling of 1055531005 in words is "one billion, fifty-five million, five hundred thirty-one thousand, five".