1025625526657 has 2 divisors, whose sum is σ = 1025625526658. Its totient is φ = 1025625526656.

The previous prime is 1025625526631. The next prime is 1025625526787. The reversal of 1025625526657 is 7566255265201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748776971761 + 276848554896 = 865319^2 + 526164^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025625526657 - 2⁷ = 1025625526529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1025625526957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512812763328 + 512812763329.

It is an arithmetic number, because the mean of its divisors is an integer number (512812763329).

Almost surely, 2^{1025625526657} is an apocalyptic number.

It is an amenable number.

1025625526657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025625526657 is an equidigital number, since it uses as much as digits as its factorization.

1025625526657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 1025625526657 in words is "one trillion, twenty-five billion, six hundred twenty-five million, five hundred twenty-six thousand, six hundred fifty-seven".