1055005165 has 4 divisors (see below), whose sum is σ = 1266006204. Its totient is φ = 844004128.

The previous prime is 1055005157. The next prime is 1055005169. The reversal of 1055005165 is 5615005501.

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 544335561 + 510669604 = 23331^2 + 22598^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055005165 - 2³ = 1055005157 is a prime.

It is a super-2 number, since 2×1055005165² = 2226071796353354450, 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 (1055005169) 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, 105500512 + ... + 105500521.

It is an arithmetic number, because the mean of its divisors is an integer number (316501551).

Almost surely, 2^1055005165 is an apocalyptic number.

It is an amenable number.

1055005165 is a deficient number, since it is larger than the sum of its proper divisors (211001039).

1055005165 is an equidigital number, since it uses as much as digits as its factorization.

1055005165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211001038.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 1055005165 is about 32480.8430463250. The cubic root of 1055005165 is about 1018.0087915761.

The spelling of 1055005165 in words is "one billion, fifty-five million, five thousand, one hundred sixty-five".