1020050563 has 4 divisors (see below), whose sum is σ = 1165772080. Its totient is φ = 874329048.

The previous prime is 1020050557. The next prime is 1020050597. The reversal of 1020050563 is 3650500201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3650500201 = 31 ⋅117758071.

It is a cyclic number.

It is not a de Polignac number, because 1020050563 - 2⁵ = 1020050531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020050503) 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, 72860748 + ... + 72860761.

It is an arithmetic number, because the mean of its divisors is an integer number (291443020).

Almost surely, 2^1020050563 is an apocalyptic number.

1020050563 is a deficient number, since it is larger than the sum of its proper divisors (145721517).

1020050563 is an equidigital number, since it uses as much as digits as its factorization.

1020050563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145721516.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1020050563 is about 31938.2304300035. The cubic root of 1020050563 is about 1006.6393425742.

Adding to 1020050563 its reverse (3650500201), we get a palindrome (4670550764).

The spelling of 1020050563 in words is "one billion, twenty million, fifty thousand, five hundred sixty-three".