652270009 has 2 divisors, whose sum is σ = 652270010. Its totient is φ = 652270008.

The previous prime is 652269979. The next prime is 652270027. The reversal of 652270009 is 900072256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 598291600 + 53978409 = 24460^2 + 7347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652270009 is a prime.

It is not a weakly prime, because it can be changed into another prime (652270049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326135004 + 326135005.

It is an arithmetic number, because the mean of its divisors is an integer number (326135005).

Almost surely, 2^652270009 is an apocalyptic number.

It is an amenable number.

652270009 is a deficient number, since it is larger than the sum of its proper divisors (1).

652270009 is an equidigital number, since it uses as much as digits as its factorization.

652270009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 652270009 is about 25539.5773066040. The cubic root of 652270009 is about 867.2463288948.

The spelling of 652270009 in words is "six hundred fifty-two million, two hundred seventy thousand, nine".