552055421 has 4 divisors (see below), whose sum is σ = 557746812. Its totient is φ = 546364032.

The previous prime is 552055403. The next prime is 552055423. The reversal of 552055421 is 124550255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174530521 + 377524900 = 13211^2 + 19430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552055421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552055423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845550 + ... + 2845743.

It is an arithmetic number, because the mean of its divisors is an integer number (139436703).

Almost surely, 2^552055421 is an apocalyptic number.

It is an amenable number.

552055421 is a deficient number, since it is larger than the sum of its proper divisors (5691391).

552055421 is an equidigital number, since it uses as much as digits as its factorization.

552055421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691390.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 552055421 is about 23495.8596565437. The cubic root of 552055421 is about 820.3406382688.

The spelling of 552055421 in words is "five hundred fifty-two million, fifty-five thousand, four hundred twenty-one".