1563013442 has 4 divisors (see below), whose sum is σ = 2344520166. Its totient is φ = 781506720.

The previous prime is 1563013423. The next prime is 1563013483. The reversal of 1563013442 is 2443103651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 824206681 + 738806761 = 28709^2 + 27181^2 .

It is a super-2 number, since 2×1563013442² = 4886022039745374728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390753359 + ... + 390753362.

Almost surely, 2^1563013442 is an apocalyptic number.

1563013442 is a deficient number, since it is larger than the sum of its proper divisors (781506724).

1563013442 is an equidigital number, since it uses as much as digits as its factorization.

1563013442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781506723.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1563013442 is about 39534.9648033231. The cubic root of 1563013442 is about 1160.5242977718.

The spelling of 1563013442 in words is "one billion, five hundred sixty-three million, thirteen thousand, four hundred forty-two".