650261 has 2 divisors, whose sum is σ = 650262. Its totient is φ = 650260.

The previous prime is 650227. The next prime is 650269. The reversal of 650261 is 162056.

650261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 649636 + 625 = 806^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 650261 - 2¹⁴ = 633877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325130 + 325131.

It is an arithmetic number, because the mean of its divisors is an integer number (325131).

2⁶⁵⁰²⁶¹ is an apocalyptic number.

It is an amenable number.

650261 is a deficient number, since it is larger than the sum of its proper divisors (1).

650261 is an equidigital number, since it uses as much as digits as its factorization.

650261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 650261 is about 806.3876239130. The cubic root of 650261 is about 86.6355032598.

The spelling of 650261 in words is "six hundred fifty thousand, two hundred sixty-one".