516443053 has 4 divisors (see below), whose sum is σ = 590220640. Its totient is φ = 442665468.

The previous prime is 516443041. The next prime is 516443069. The reversal of 516443053 is 350344615.

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.

It is not a de Polignac number, because 516443053 - 2²¹ = 514345901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516443023) 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, 36888783 + ... + 36888796.

It is an arithmetic number, because the mean of its divisors is an integer number (147555160).

Almost surely, 2^516443053 is an apocalyptic number.

It is an amenable number.

516443053 is a deficient number, since it is larger than the sum of its proper divisors (73777587).

516443053 is an equidigital number, since it uses as much as digits as its factorization.

516443053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73777586.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 516443053 is about 22725.3834511103. The cubic root of 516443053 is about 802.3074284232.

Adding to 516443053 its reverse (350344615), we get a palindrome (866787668).

The spelling of 516443053 in words is "five hundred sixteen million, four hundred forty-three thousand, fifty-three".