1649225503 has 2 divisors, whose sum is σ = 1649225504. Its totient is φ = 1649225502.

The previous prime is 1649225489. The next prime is 1649225507. The reversal of 1649225503 is 3055229461.

It is a strong prime.

It is an emirp because it is prime and its reverse (3055229461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1649225503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1649225507) 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, 824612751 + 824612752.

It is an arithmetic number, because the mean of its divisors is an integer number (824612752).

Almost surely, 2^1649225503 is an apocalyptic number.

1649225503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1649225503 is an equidigital number, since it uses as much as digits as its factorization.

1649225503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1649225503 is about 40610.6575051427. The cubic root of 1649225503 is about 1181.4808333339.

The spelling of 1649225503 in words is "one billion, six hundred forty-nine million, two hundred twenty-five thousand, five hundred three".