5526551321 has 4 divisors (see below), whose sum is σ = 5604390144. Its totient is φ = 5448712500.

The previous prime is 5526551293. The next prime is 5526551357. The reversal of 5526551321 is 1231556255.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1231556255 = 5 ⋅246311251.

It is a cyclic number.

It is not a de Polignac number, because 5526551321 - 2¹⁸ = 5526289177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5523551321) 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, 38919305 + ... + 38919446.

It is an arithmetic number, because the mean of its divisors is an integer number (1401097536).

Almost surely, 2^5526551321 is an apocalyptic number.

It is an amenable number.

5526551321 is a deficient number, since it is larger than the sum of its proper divisors (77838823).

5526551321 is an equidigital number, since it uses as much as digits as its factorization.

5526551321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77838822.

The product of its digits is 45000, while the sum is 35.

The square root of 5526551321 is about 74340.7783184976. The cubic root of 5526551321 is about 1768.0100761124.

The spelling of 5526551321 in words is "five billion, five hundred twenty-six million, five hundred fifty-one thousand, three hundred twenty-one".