1563426245 has 8 divisors (see below), whose sum is σ = 1877229816. Its totient is φ = 1249995456.

The previous prime is 1563426217. The next prime is 1563426247. The reversal of 1563426245 is 5426243651.

It can be written as a sum of positive squares in 4 ways, for example, as 161747524 + 1401678721 = 12718^2 + 37439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1563426245 - 2¹⁰ = 1563425221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1563426199 and 1563426208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563426247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83882 + ... + 100811.

It is an arithmetic number, because the mean of its divisors is an integer number (234653727).

Almost surely, 2^1563426245 is an apocalyptic number.

It is an amenable number.

1563426245 is a deficient number, since it is larger than the sum of its proper divisors (313803571).

1563426245 is a wasteful number, since it uses less digits than its factorization.

1563426245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186391.

The product of its digits is 172800, while the sum is 38.

The square root of 1563426245 is about 39540.1851917767. The cubic root of 1563426245 is about 1160.6264563606.

Adding to 1563426245 its reverse (5426243651), we get a palindrome (6989669896).

The spelling of 1563426245 in words is "one billion, five hundred sixty-three million, four hundred twenty-six thousand, two hundred forty-five".