11553550247 has 4 divisors (see below), whose sum is σ = 11564083296. Its totient is φ = 11543017200.

The previous prime is 11553550241. The next prime is 11553550259. The reversal of 11553550247 is 74205535511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74205535511 = 157 ⋅472646723.

It is a cyclic number.

It is not a de Polignac number, because 11553550247 - 2²⁶ = 11486441383 is a prime.

It is a super-2 number, since 2×11553550247² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11553550247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553550241) 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, 5264879 + ... + 5267072.

It is an arithmetic number, because the mean of its divisors is an integer number (2891020824).

Almost surely, 2^11553550247 is an apocalyptic number.

11553550247 is a deficient number, since it is larger than the sum of its proper divisors (10533049).

11553550247 is a wasteful number, since it uses less digits than its factorization.

11553550247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10533048.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 11553550247 in words is "eleven billion, five hundred fifty-three million, five hundred fifty thousand, two hundred forty-seven".