1125324553 has 2 divisors, whose sum is σ = 1125324554. Its totient is φ = 1125324552.

The previous prime is 1125324467. The next prime is 1125324559. The reversal of 1125324553 is 3554235211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 563255289 + 562069264 = 23733^2 + 23708^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125324553 - 2²¹ = 1123227401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1125324559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562662276 + 562662277.

It is an arithmetic number, because the mean of its divisors is an integer number (562662277).

Almost surely, 2^1125324553 is an apocalyptic number.

It is an amenable number.

1125324553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125324553 is an equidigital number, since it uses as much as digits as its factorization.

1125324553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 31.

The square root of 1125324553 is about 33545.8574640745. The cubic root of 1125324553 is about 1040.1419163460.

Adding to 1125324553 its reverse (3554235211), we get a palindrome (4679559764).

The spelling of 1125324553 in words is "one billion, one hundred twenty-five million, three hundred twenty-four thousand, five hundred fifty-three".