11552557553 has 8 divisors (see below), whose sum is σ = 12763951488. Its totient is φ = 10400256064.

The previous prime is 11552557543. The next prime is 11552557567. The reversal of 11552557553 is 35575525511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11552557553 - 2¹⁸ = 11552295409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11552557543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14772701 + ... + 14773482.

It is an arithmetic number, because the mean of its divisors is an integer number (1595493936).

Almost surely, 2^11552557553 is an apocalyptic number.

It is an amenable number.

11552557553 is a deficient number, since it is larger than the sum of its proper divisors (1211393935).

11552557553 is a wasteful number, since it uses less digits than its factorization.

11552557553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29546223.

The product of its digits is 656250, while the sum is 44.

The spelling of 11552557553 in words is "eleven billion, five hundred fifty-two million, five hundred fifty-seven thousand, five hundred fifty-three".