1625795317 has 2 divisors, whose sum is σ = 1625795318. Its totient is φ = 1625795316.

The previous prime is 1625795309. The next prime is 1625795321. The reversal of 1625795317 is 7135975261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1350268516 + 275526801 = 36746^2 + 16599^2 .

It is a cyclic number.

It is not a de Polignac number, because 1625795317 - 2³ = 1625795309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1625795117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812897658 + 812897659.

It is an arithmetic number, because the mean of its divisors is an integer number (812897659).

Almost surely, 2^1625795317 is an apocalyptic number.

It is an amenable number.

1625795317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625795317 is an equidigital number, since it uses as much as digits as its factorization.

1625795317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 396900, while the sum is 46.

The square root of 1625795317 is about 40321.1522280800. The cubic root of 1625795317 is about 1175.8591132397.

The spelling of 1625795317 in words is "one billion, six hundred twenty-five million, seven hundred ninety-five thousand, three hundred seventeen".