533378513 has 12 divisors (see below), whose sum is σ = 551294820. Its totient is φ = 515974272.

The previous prime is 533378497. The next prime is 533378551. The reversal of 533378513 is 315873335.

It can be written as a sum of positive squares in 2 ways, for example, as 355209409 + 178169104 = 18847^2 + 13348^2 .

It is not a de Polignac number, because 533378513 - 2⁴ = 533378497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (533378563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195245 + ... + 197957.

It is an arithmetic number, because the mean of its divisors is an integer number (45941235).

Almost surely, 2^533378513 is an apocalyptic number.

It is an amenable number.

533378513 is a deficient number, since it is larger than the sum of its proper divisors (17916307).

533378513 is an equidigital number, since it uses as much as digits as its factorization.

533378513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896 (or 2849 counting only the distinct ones).

The product of its digits is 113400, while the sum is 38.

The square root of 533378513 is about 23094.9889153470. The cubic root of 533378513 is about 810.9831647514.

The spelling of 533378513 in words is "five hundred thirty-three million, three hundred seventy-eight thousand, five hundred thirteen".