1115000553 has 4 divisors (see below), whose sum is σ = 1486667408. Its totient is φ = 743333700.

The previous prime is 1115000531. The next prime is 1115000561. The reversal of 1115000553 is 3550005111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1115000553 - 2⁵ = 1115000521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115000053) 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, 185833423 + ... + 185833428.

It is an arithmetic number, because the mean of its divisors is an integer number (371666852).

Almost surely, 2^1115000553 is an apocalyptic number.

It is an amenable number.

1115000553 is a deficient number, since it is larger than the sum of its proper divisors (371666855).

1115000553 is an equidigital number, since it uses as much as digits as its factorization.

1115000553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371666854.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 1115000553 is about 33391.6239946487. The cubic root of 1115000553 is about 1036.9513012501.

Adding to 1115000553 its reverse (3550005111), we get a palindrome (4665005664).

The spelling of 1115000553 in words is "one billion, one hundred fifteen million, five hundred fifty-three", and thus it is an aban number.