650125549 has 2 divisors, whose sum is σ = 650125550. Its totient is φ = 650125548.

The previous prime is 650125493. The next prime is 650125559. The reversal of 650125549 is 945521056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441756324 + 208369225 = 21018^2 + 14435^2 .

It is a cyclic number.

It is not a de Polignac number, because 650125549 - 2⁹ = 650125037 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 (650125559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325062774 + 325062775.

It is an arithmetic number, because the mean of its divisors is an integer number (325062775).

Almost surely, 2^650125549 is an apocalyptic number.

It is an amenable number.

650125549 is a deficient number, since it is larger than the sum of its proper divisors (1).

650125549 is an equidigital number, since it uses as much as digits as its factorization.

650125549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 650125549 is about 25497.5596675447. The cubic root of 650125549 is about 866.2948737779.

The spelling of 650125549 in words is "six hundred fifty million, one hundred twenty-five thousand, five hundred forty-nine".