1563442051 has 2 divisors, whose sum is σ = 1563442052. Its totient is φ = 1563442050.

The previous prime is 1563442039. The next prime is 1563442057. The reversal of 1563442051 is 1502443651.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1563442051 - 2²¹ = 1561344899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1563442057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781721025 + 781721026.

It is an arithmetic number, because the mean of its divisors is an integer number (781721026).

Almost surely, 2^1563442051 is an apocalyptic number.

1563442051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563442051 is an equidigital number, since it uses as much as digits as its factorization.

1563442051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1563442051 is about 39540.3850638812. The cubic root of 1563442051 is about 1160.6303675994.

The spelling of 1563442051 in words is "one billion, five hundred sixty-three million, four hundred forty-two thousand, fifty-one".