1115523053 has 4 divisors (see below), whose sum is σ = 1118305308. Its totient is φ = 1112740800.

The previous prime is 1115523049. The next prime is 1115523107. The reversal of 1115523053 is 3503255111.

It is a happy number.

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 932813764 + 182709289 = 30542^2 + 13517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115523053 - 2² = 1115523049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115523853) 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, 1390526 + ... + 1391327.

It is an arithmetic number, because the mean of its divisors is an integer number (279576327).

Almost surely, 2^1115523053 is an apocalyptic number.

It is an amenable number.

1115523053 is a deficient number, since it is larger than the sum of its proper divisors (2782255).

1115523053 is an equidigital number, since it uses as much as digits as its factorization.

1115523053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782254.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 1115523053 is about 33399.4468966179. The cubic root of 1115523053 is about 1037.1132510786.

Adding to 1115523053 its reverse (3503255111), we get a palindrome (4618778164).

The spelling of 1115523053 in words is "one billion, one hundred fifteen million, five hundred twenty-three thousand, fifty-three".