552652721 has 4 divisors (see below), whose sum is σ = 552840000. Its totient is φ = 552465444.

The previous prime is 552652693. The next prime is 552652759. The reversal of 552652721 is 127256255.

552652721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-552652721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552652621) 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, 89141 + ... + 95138.

It is an arithmetic number, because the mean of its divisors is an integer number (138210000).

Almost surely, 2^552652721 is an apocalyptic number.

It is an amenable number.

552652721 is a deficient number, since it is larger than the sum of its proper divisors (187279).

552652721 is a wasteful number, since it uses less digits than its factorization.

552652721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187278.

The product of its digits is 42000, while the sum is 35.

The square root of 552652721 is about 23508.5669703621. The cubic root of 552652721 is about 820.6363892840.

The spelling of 552652721 in words is "five hundred fifty-two million, six hundred fifty-two thousand, seven hundred twenty-one".