1550963 has 2 divisors, whose sum is σ = 1550964. Its totient is φ = 1550962.

The previous prime is 1550947. The next prime is 1550971. The reversal of 1550963 is 3690551.

It is a strong prime.

It is an emirp because it is prime and its reverse (3690551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1550963 - 2⁴ = 1550947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1550993) 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, 775481 + 775482.

It is an arithmetic number, because the mean of its divisors is an integer number (775482).

2^1550963 is an apocalyptic number.

1550963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550963 is an equidigital number, since it uses as much as digits as its factorization.

1550963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 1550963 is about 1245.3766498534. The cubic root of 1550963 is about 115.7534149608.

The spelling of 1550963 in words is "one million, five hundred fifty thousand, nine hundred sixty-three".