552640609 has 2 divisors, whose sum is σ = 552640610. Its totient is φ = 552640608.

The previous prime is 552640537. The next prime is 552640657. The reversal of 552640609 is 906046255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294877584 + 257763025 = 17172^2 + 16055^2 .

It is a cyclic number.

It is not a de Polignac number, because 552640609 - 2¹⁵ = 552607841 is a prime.

It is not a weakly prime, because it can be changed into another prime (552640009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276320304 + 276320305.

It is an arithmetic number, because the mean of its divisors is an integer number (276320305).

Almost surely, 2^552640609 is an apocalyptic number.

It is an amenable number.

552640609 is a deficient number, since it is larger than the sum of its proper divisors (1).

552640609 is an equidigital number, since it uses as much as digits as its factorization.

552640609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 552640609 is about 23508.3093607346. The cubic root of 552640609 is about 820.6303941866.

The spelling of 552640609 in words is "five hundred fifty-two million, six hundred forty thousand, six hundred nine".