250042535125609 has 2 divisors, whose sum is σ = 250042535125610. Its totient is φ = 250042535125608.

The previous prime is 250042535125519. The next prime is 250042535125637. The reversal of 250042535125609 is 906521535240052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249078941595225 + 963593530384 = 15782235^2 + 981628^2 .

It is a cyclic number.

It is not a de Polignac number, because 250042535125609 - 2¹⁷ = 250042534994537 is a prime.

It is not a weakly prime, because it can be changed into another prime (250042535125109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125021267562804 + 125021267562805.

It is an arithmetic number, because the mean of its divisors is an integer number (125021267562805).

Almost surely, 2^{250042535125609} is an apocalyptic number.

It is an amenable number.

250042535125609 is a deficient number, since it is larger than the sum of its proper divisors (1).

250042535125609 is an equidigital number, since it uses as much as digits as its factorization.

250042535125609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 250042535125609 in words is "two hundred fifty trillion, forty-two billion, five hundred thirty-five million, one hundred twenty-five thousand, six hundred nine".