1625016443 has 2 divisors, whose sum is σ = 1625016444. Its totient is φ = 1625016442.

The previous prime is 1625016403. The next prime is 1625016461. The reversal of 1625016443 is 3446105261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1625016443 - 2¹⁶ = 1624950907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1625016403) 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, 812508221 + 812508222.

It is an arithmetic number, because the mean of its divisors is an integer number (812508222).

Almost surely, 2^1625016443 is an apocalyptic number.

1625016443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625016443 is an equidigital number, since it uses as much as digits as its factorization.

1625016443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1625016443 is about 40311.4926912909. The cubic root of 1625016443 is about 1175.6713092825.

The spelling of 1625016443 in words is "one billion, six hundred twenty-five million, sixteen thousand, four hundred forty-three".