245325770581 has 2 divisors, whose sum is σ = 245325770582. Its totient is φ = 245325770580.

The previous prime is 245325770531. The next prime is 245325770593. The reversal of 245325770581 is 185077523542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137147271556 + 108178499025 = 370334^2 + 328905^2 .

It is a cyclic number.

It is not a de Polignac number, because 245325770581 - 2⁷ = 245325770453 is a prime.

It is a super-2 number, since 2×245325770581² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245325770531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122662885290 + 122662885291.

It is an arithmetic number, because the mean of its divisors is an integer number (122662885291).

Almost surely, 2^245325770581 is an apocalyptic number.

It is an amenable number.

245325770581 is a deficient number, since it is larger than the sum of its proper divisors (1).

245325770581 is an equidigital number, since it uses as much as digits as its factorization.

245325770581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 245325770581 in words is "two hundred forty-five billion, three hundred twenty-five million, seven hundred seventy thousand, five hundred eighty-one".