563315242421 has 4 divisors (see below), whose sum is σ = 563335375200. Its totient is φ = 563295109644.

The previous prime is 563315242381. The next prime is 563315242463. The reversal of 563315242421 is 124242513365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124242513365 = 5 ⋅24848502673.

It is a cyclic number.

It is not a de Polignac number, because 563315242421 - 2²² = 563311048117 is a prime.

It is a super-3 number, since 3×563315242421³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563315242621) 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, 10024361 + ... + 10080398.

It is an arithmetic number, because the mean of its divisors is an integer number (140833843800).

Almost surely, 2^563315242421 is an apocalyptic number.

It is an amenable number.

563315242421 is a deficient number, since it is larger than the sum of its proper divisors (20132779).

563315242421 is a wasteful number, since it uses less digits than its factorization.

563315242421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20132778.

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

Adding to 563315242421 its reverse (124242513365), we get a palindrome (687557755786).

The spelling of 563315242421 in words is "five hundred sixty-three billion, three hundred fifteen million, two hundred forty-two thousand, four hundred twenty-one".