513442255 has 4 divisors (see below), whose sum is σ = 616130712. Its totient is φ = 410753800.

The previous prime is 513442219. The next prime is 513442261. The reversal of 513442255 is 552244315.

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

It is not a de Polignac number, because 513442255 - 2¹⁹ = 512917967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51344221 + ... + 51344230.

It is an arithmetic number, because the mean of its divisors is an integer number (154032678).

Almost surely, 2^513442255 is an apocalyptic number.

513442255 is a deficient number, since it is larger than the sum of its proper divisors (102688457).

513442255 is a wasteful number, since it uses less digits than its factorization.

513442255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102688456.

The product of its digits is 24000, while the sum is 31.

The square root of 513442255 is about 22659.2642201816. The cubic root of 513442255 is about 800.7504702520.

The spelling of 513442255 in words is "five hundred thirteen million, four hundred forty-two thousand, two hundred fifty-five".