1155022572257 has 4 divisors (see below), whose sum is σ = 1156598320020. Its totient is φ = 1153446824496.

The previous prime is 1155022572247. The next prime is 1155022572283. The reversal of 1155022572257 is 7522752205511.

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 1123735684096 + 31286888161 = 1060064^2 + 176881^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155022572257 - 2¹⁴ = 1155022555873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155022572217) 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, 787872782 + ... + 787874247.

It is an arithmetic number, because the mean of its divisors is an integer number (289149580005).

Almost surely, 2^{1155022572257} is an apocalyptic number.

It is an amenable number.

1155022572257 is a deficient number, since it is larger than the sum of its proper divisors (1575747763).

1155022572257 is an equidigital number, since it uses as much as digits as its factorization.

1155022572257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575747762.

The product of its (nonzero) digits is 490000, while the sum is 44.

Adding to 1155022572257 its reverse (7522752205511), we get a palindrome (8677774777768).

The spelling of 1155022572257 in words is "one trillion, one hundred fifty-five billion, twenty-two million, five hundred seventy-two thousand, two hundred fifty-seven".