650066531 has 2 divisors, whose sum is σ = 650066532. Its totient is φ = 650066530.

The previous prime is 650066509. The next prime is 650066539. The reversal of 650066531 is 135660056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 650066531 - 2⁶ = 650066467 is a prime.

It is a super-2 number, since 2×650066531² = 845172989452747922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (650066539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325033265 + 325033266.

It is an arithmetic number, because the mean of its divisors is an integer number (325033266).

Almost surely, 2^650066531 is an apocalyptic number.

650066531 is a deficient number, since it is larger than the sum of its proper divisors (1).

650066531 is an equidigital number, since it uses as much as digits as its factorization.

650066531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 650066531 is about 25496.4023148365. The cubic root of 650066531 is about 866.2686590782.

The spelling of 650066531 in words is "six hundred fifty million, sixty-six thousand, five hundred thirty-one".