1053516553 has 4 divisors (see below), whose sum is σ = 1089844740. Its totient is φ = 1017188368.

The previous prime is 1053516517. The next prime is 1053516559. The reversal of 1053516553 is 3556153501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3556153501 = 29243 ⋅121607.

It can be written as a sum of positive squares in 2 ways, for example, as 701879049 + 351637504 = 26493^2 + 18752^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053516553 - 2¹³ = 1053508361 is a prime.

It is a super-3 number, since 3×1053516553³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053516559) 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, 18164050 + ... + 18164107.

It is an arithmetic number, because the mean of its divisors is an integer number (272461185).

Almost surely, 2^1053516553 is an apocalyptic number.

It is an amenable number.

1053516553 is a deficient number, since it is larger than the sum of its proper divisors (36328187).

1053516553 is an equidigital number, since it uses as much as digits as its factorization.

1053516553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36328186.

The product of its (nonzero) digits is 33750, while the sum is 34.

The square root of 1053516553 is about 32457.9197269326. The cubic root of 1053516553 is about 1017.5297628265.

The spelling of 1053516553 in words is "one billion, fifty-three million, five hundred sixteen thousand, five hundred fifty-three".