1625255396593 has 2 divisors, whose sum is σ = 1625255396594. Its totient is φ = 1625255396592.

The previous prime is 1625255396579. The next prime is 1625255396603. The reversal of 1625255396593 is 3956935525261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1343021396544 + 282234000049 = 1158888^2 + 531257^2 .

It is a cyclic number.

It is not a de Polignac number, because 1625255396593 - 2⁵ = 1625255396561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1625255396503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812627698296 + 812627698297.

It is an arithmetic number, because the mean of its divisors is an integer number (812627698297).

Almost surely, 2^{1625255396593} is an apocalyptic number.

It is an amenable number.

1625255396593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625255396593 is an equidigital number, since it uses as much as digits as its factorization.

1625255396593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65610000, while the sum is 61.

The spelling of 1625255396593 in words is "one trillion, six hundred twenty-five billion, two hundred fifty-five million, three hundred ninety-six thousand, five hundred ninety-three".