1053205665 has 32 divisors (see below), whose sum is σ = 1756909440. Its totient is φ = 538277376.

The previous prime is 1053205661. The next prime is 1053205669. The reversal of 1053205665 is 5665023501.

1053205665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1053205661) and next prime (1053205669).

It is not a de Polignac number, because 1053205665 - 2² = 1053205661 is a prime.

It is a super-2 number, since 2×1053205665² = 2218484345576184450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1053205661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18781 + ... + 49589.

It is an arithmetic number, because the mean of its divisors is an integer number (54903420).

Almost surely, 2^1053205665 is an apocalyptic number.

1053205665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1053205665 is a deficient number, since it is larger than the sum of its proper divisors (703703775).

1053205665 is a wasteful number, since it uses less digits than its factorization.

1053205665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30913.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 1053205665 is about 32453.1302804521. The cubic root of 1053205665 is about 1017.4296634930.

The spelling of 1053205665 in words is "one billion, fifty-three million, two hundred five thousand, six hundred sixty-five".