11506002553 has 4 divisors (see below), whose sum is σ = 11507087488. Its totient is φ = 11504917620.

The previous prime is 11506002523. The next prime is 11506002559. The reversal of 11506002553 is 35520060511.

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 a cyclic number.

It is not a de Polignac number, because 11506002553 - 2⁹ = 11506002041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11506002559) 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, 526401 + ... + 547822.

It is an arithmetic number, because the mean of its divisors is an integer number (2876771872).

Almost surely, 2^11506002553 is an apocalyptic number.

It is an amenable number.

11506002553 is a deficient number, since it is larger than the sum of its proper divisors (1084935).

11506002553 is a wasteful number, since it uses less digits than its factorization.

11506002553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084934.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 11506002553 in words is "eleven billion, five hundred six million, two thousand, five hundred fifty-three".