513025043 has 4 divisors (see below), whose sum is σ = 513112080. Its totient is φ = 512938008.

The previous prime is 513025039. The next prime is 513025049. The reversal of 513025043 is 340520315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340520315 = 5 ⋅68104063.

It is a cyclic number.

It is not a de Polignac number, because 513025043 - 2² = 513025039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513025049) 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, 33980 + ... + 46697.

It is an arithmetic number, because the mean of its divisors is an integer number (128278020).

Almost surely, 2^513025043 is an apocalyptic number.

513025043 is a deficient number, since it is larger than the sum of its proper divisors (87037).

513025043 is an equidigital number, since it uses as much as digits as its factorization.

513025043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87036.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 513025043 is about 22650.0561367958. The cubic root of 513025043 is about 800.5335206780.

Adding to 513025043 its reverse (340520315), we get a palindrome (853545358).

The spelling of 513025043 in words is "five hundred thirteen million, twenty-five thousand, forty-three".