1055684965 has 4 divisors (see below), whose sum is σ = 1266821964. Its totient is φ = 844547968.

The previous prime is 1055684963. The next prime is 1055684983. The reversal of 1055684965 is 5694865501.

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 764743716 + 290941249 = 27654^2 + 17057^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055684965 - 2¹ = 1055684963 is a prime.

It is a super-2 number, since 2×1055684965² = 2228941490654102450, 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 (1055684963) 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, 105568492 + ... + 105568501.

It is an arithmetic number, because the mean of its divisors is an integer number (316705491).

Almost surely, 2^1055684965 is an apocalyptic number.

It is an amenable number.

1055684965 is a deficient number, since it is larger than the sum of its proper divisors (211136999).

1055684965 is an equidigital number, since it uses as much as digits as its factorization.

1055684965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211136998.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 1055684965 is about 32491.3059909878. The cubic root of 1055684965 is about 1018.2273983381.

The spelling of 1055684965 in words is "one billion, fifty-five million, six hundred eighty-four thousand, nine hundred sixty-five".