552520561 has 2 divisors, whose sum is σ = 552520562. Its totient is φ = 552520560.

The previous prime is 552520541. The next prime is 552520567. The reversal of 552520561 is 165025255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434472336 + 118048225 = 20844^2 + 10865^2 .

It is a cyclic number.

It is not a de Polignac number, because 552520561 - 2²¹ = 550423409 is a prime.

It is not a weakly prime, because it can be changed into another prime (552520567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276260280 + 276260281.

It is an arithmetic number, because the mean of its divisors is an integer number (276260281).

Almost surely, 2^552520561 is an apocalyptic number.

It is an amenable number.

552520561 is a deficient number, since it is larger than the sum of its proper divisors (1).

552520561 is an equidigital number, since it uses as much as digits as its factorization.

552520561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 552520561 is about 23505.7559121165. The cubic root of 552520561 is about 820.5709690858.

The spelling of 552520561 in words is "five hundred fifty-two million, five hundred twenty thousand, five hundred sixty-one".