7025121457 has 2 divisors, whose sum is σ = 7025121458. Its totient is φ = 7025121456.

The previous prime is 7025121437. The next prime is 7025121469. The reversal of 7025121457 is 7541215207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4979278096 + 2045843361 = 70564^2 + 45231^2 .

It is a cyclic number.

It is not a de Polignac number, because 7025121457 - 2¹⁹ = 7024597169 is a prime.

It is not a weakly prime, because it can be changed into another prime (7025121407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3512560728 + 3512560729.

It is an arithmetic number, because the mean of its divisors is an integer number (3512560729).

Almost surely, 2^7025121457 is an apocalyptic number.

It is an amenable number.

7025121457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7025121457 is an equidigital number, since it uses as much as digits as its factorization.

7025121457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 7025121457 is about 83815.9976197862. The cubic root of 7025121457 is about 1915.2168135241.

The spelling of 7025121457 in words is "seven billion, twenty-five million, one hundred twenty-one thousand, four hundred fifty-seven".