1563040223 has 4 divisors (see below), whose sum is σ = 1563411480. Its totient is φ = 1562668968.

The previous prime is 1563040217. The next prime is 1563040229. The reversal of 1563040223 is 3220403651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3220403651 = 19 ⋅169494929.

It is an interprime number because it is at equal distance from previous prime (1563040217) and next prime (1563040229).

It is a cyclic number.

It is not a de Polignac number, because 1563040223 - 2¹² = 1563036127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1563040192 and 1563040201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563040229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179240 + ... + 187757.

It is an arithmetic number, because the mean of its divisors is an integer number (390852870).

Almost surely, 2^1563040223 is an apocalyptic number.

1563040223 is a deficient number, since it is larger than the sum of its proper divisors (371257).

1563040223 is an equidigital number, since it uses as much as digits as its factorization.

1563040223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371256.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1563040223 is about 39535.3035020600. The cubic root of 1563040223 is about 1160.5309259561.

Adding to 1563040223 its reverse (3220403651), we get a palindrome (4783443874).

The spelling of 1563040223 in words is "one billion, five hundred sixty-three million, forty thousand, two hundred twenty-three".