1768566425 has 6 divisors (see below), whose sum is σ = 2193022398. Its totient is φ = 1414853120.

The previous prime is 1768566419. The next prime is 1768566427. The reversal of 1768566425 is 5246658671.

It can be written as a sum of positive squares in 3 ways, for example, as 952576 + 1767613849 = 976^2 + 42043^2 .

It is not a de Polignac number, because 1768566425 - 2¹² = 1768562329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1768566427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35371304 + ... + 35371353.

It is an arithmetic number, because the mean of its divisors is an integer number (365503733).

Almost surely, 2^1768566425 is an apocalyptic number.

It is an amenable number.

1768566425 is a deficient number, since it is larger than the sum of its proper divisors (424455973).

1768566425 is an equidigital number, since it uses as much as digits as its factorization.

1768566425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70742667 (or 70742662 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 50.

The square root of 1768566425 is about 42054.3270663079. The cubic root of 1768566425 is about 1209.3178371493.

The spelling of 1768566425 in words is "one billion, seven hundred sixty-eight million, five hundred sixty-six thousand, four hundred twenty-five".