250569478573 has 2 divisors, whose sum is σ = 250569478574. Its totient is φ = 250569478572.

The previous prime is 250569478571. The next prime is 250569478609. The reversal of 250569478573 is 375874965052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232784055529 + 17785423044 = 482477^2 + 133362^2 .

It is a cyclic number.

It is not a de Polignac number, because 250569478573 - 2¹ = 250569478571 is a prime.

It is a super-2 number, since 2×250569478573² (a number of 24 digits) contains 22 as substring.

Together with 250569478571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250569478571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125284739286 + 125284739287.

It is an arithmetic number, because the mean of its divisors is an integer number (125284739287).

Almost surely, 2^250569478573 is an apocalyptic number.

It is an amenable number.

250569478573 is a deficient number, since it is larger than the sum of its proper divisors (1).

250569478573 is an equidigital number, since it uses as much as digits as its factorization.

250569478573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504000, while the sum is 61.

The spelling of 250569478573 in words is "two hundred fifty billion, five hundred sixty-nine million, four hundred seventy-eight thousand, five hundred seventy-three".