27552353561 has 4 divisors (see below), whose sum is σ = 27884309712. Its totient is φ = 27220397412.

The previous prime is 27552353557. The next prime is 27552353567. The reversal of 27552353561 is 16535325572.

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 27552353561 - 2² = 27552353557 is a prime.

It is a super-3 number, since 3×27552353561³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27552353567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165977951 + ... + 165978116.

It is an arithmetic number, because the mean of its divisors is an integer number (6971077428).

Almost surely, 2^27552353561 is an apocalyptic number.

It is an amenable number.

27552353561 is a deficient number, since it is larger than the sum of its proper divisors (331956151).

27552353561 is an equidigital number, since it uses as much as digits as its factorization.

27552353561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331956150.

The product of its digits is 945000, while the sum is 44.

The spelling of 27552353561 in words is "twenty-seven billion, five hundred fifty-two million, three hundred fifty-three thousand, five hundred sixty-one".