1055071697 has 4 divisors (see below), whose sum is σ = 1117134756. Its totient is φ = 993008640.

The previous prime is 1055071679. The next prime is 1055071751. The reversal of 1055071697 is 7961705501.

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 323856016 + 731215681 = 17996^2 + 27041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055071697 - 2⁸ = 1055071441 is a prime.

It is a super-2 number, since 2×1055071697² = 2226352571620919618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055071627) 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, 31031504 + ... + 31031537.

It is an arithmetic number, because the mean of its divisors is an integer number (279283689).

Almost surely, 2^1055071697 is an apocalyptic number.

1055071697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1055071697 is a deficient number, since it is larger than the sum of its proper divisors (62063059).

1055071697 is an equidigital number, since it uses as much as digits as its factorization.

1055071697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62063058.

The product of its (nonzero) digits is 66150, while the sum is 41.

The square root of 1055071697 is about 32481.8672031027. The cubic root of 1055071697 is about 1018.0301907564.

The spelling of 1055071697 in words is "one billion, fifty-five million, seventy-one thousand, six hundred ninety-seven".