2025581897 has 2 divisors, whose sum is σ = 2025581898. Its totient is φ = 2025581896.

The previous prime is 2025581893. The next prime is 2025581903. The reversal of 2025581897 is 7981855202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1267075216 + 758506681 = 35596^2 + 27541^2 .

It is a cyclic number.

It is not a de Polignac number, because 2025581897 - 2² = 2025581893 is a prime.

It is not a weakly prime, because it can be changed into another prime (2025581891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012790948 + 1012790949.

It is an arithmetic number, because the mean of its divisors is an integer number (1012790949).

Almost surely, 2^2025581897 is an apocalyptic number.

It is an amenable number.

2025581897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2025581897 is an equidigital number, since it uses as much as digits as its factorization.

2025581897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 2025581897 is about 45006.4650578114. The cubic root of 2025581897 is about 1265.2701692945.

The spelling of 2025581897 in words is "two billion, twenty-five million, five hundred eighty-one thousand, eight hundred ninety-seven".