1053021563 has 4 divisors (see below), whose sum is σ = 1148750808. Its totient is φ = 957292320.

The previous prime is 1053021533. The next prime is 1053021583. The reversal of 1053021563 is 3651203501.

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

It is a cyclic number.

It is not a de Polignac number, because 1053021563 - 2¹² = 1053017467 is a prime.

It is a super-2 number, since 2×1053021563² = 2217708824285925938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053021503) 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, 47864606 + ... + 47864627.

It is an arithmetic number, because the mean of its divisors is an integer number (287187702).

Almost surely, 2^1053021563 is an apocalyptic number.

1053021563 is a deficient number, since it is larger than the sum of its proper divisors (95729245).

1053021563 is an equidigital number, since it uses as much as digits as its factorization.

1053021563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95729244.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1053021563 is about 32450.2937274842. The cubic root of 1053021563 is about 1017.3703772721.

The spelling of 1053021563 in words is "one billion, fifty-three million, twenty-one thousand, five hundred sixty-three".