652069261 has 2 divisors, whose sum is σ = 652069262. Its totient is φ = 652069260.

The previous prime is 652069247. The next prime is 652069267. The reversal of 652069261 is 162960256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467381161 + 184688100 = 21619^2 + 13590^2 .

It is a cyclic number.

It is not a de Polignac number, because 652069261 - 2²⁷ = 517851533 is a prime.

It is a super-2 number, since 2×652069261² = 850388642282172242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 652069261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652069267) 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 as a sum of consecutive naturals, namely, 326034630 + 326034631.

It is an arithmetic number, because the mean of its divisors is an integer number (326034631).

Almost surely, 2^652069261 is an apocalyptic number.

It is an amenable number.

652069261 is a deficient number, since it is larger than the sum of its proper divisors (1).

652069261 is an equidigital number, since it uses as much as digits as its factorization.

652069261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 652069261 is about 25535.6468686423. The cubic root of 652069261 is about 867.1573494705.

The spelling of 652069261 in words is "six hundred fifty-two million, sixty-nine thousand, two hundred sixty-one".