552526321 has 4 divisors (see below), whose sum is σ = 552586212. Its totient is φ = 552466432.

The previous prime is 552526319. The next prime is 552526339. The reversal of 552526321 is 123625255.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 242238096 + 310288225 = 15564^2 + 17615^2 .

It is a cyclic number.

It is not a de Polignac number, because 552526321 - 2¹ = 552526319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552526621) 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, 12856 + ... + 35641.

It is an arithmetic number, because the mean of its divisors is an integer number (138146553).

Almost surely, 2^552526321 is an apocalyptic number.

It is an amenable number.

552526321 is a deficient number, since it is larger than the sum of its proper divisors (59891).

552526321 is a wasteful number, since it uses less digits than its factorization.

552526321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59890.

The product of its digits is 18000, while the sum is 31.

The square root of 552526321 is about 23505.8784349788. The cubic root of 552526321 is about 820.5738205467.

The spelling of 552526321 in words is "five hundred fifty-two million, five hundred twenty-six thousand, three hundred twenty-one".