2625749617 has 2 divisors, whose sum is σ = 2625749618. Its totient is φ = 2625749616.

The previous prime is 2625749597. The next prime is 2625749641. The reversal of 2625749617 is 7169475262.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1698181681 + 927567936 = 41209^2 + 30456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2625749617 is a prime.

It is a super-2 number, since 2×2625749617² = 13789122102351293378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2625749677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312874808 + 1312874809.

It is an arithmetic number, because the mean of its divisors is an integer number (1312874809).

Almost surely, 2^2625749617 is an apocalyptic number.

It is an amenable number.

2625749617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625749617 is an equidigital number, since it uses as much as digits as its factorization.

2625749617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 2625749617 is about 51242.0688204526. The cubic root of 2625749617 is about 1379.5933859449.

The spelling of 2625749617 in words is "two billion, six hundred twenty-five million, seven hundred forty-nine thousand, six hundred seventeen".