513842263 has 4 divisors (see below), whose sum is σ = 560555208. Its totient is φ = 467129320.

The previous prime is 513842249. The next prime is 513842309. The reversal of 513842263 is 362248315.

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

It is a cyclic number.

It is not a de Polignac number, because 513842263 - 2⁹ = 513841751 is a prime.

It is a super-2 number, since 2×513842263² = 528067742489922338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513842243) 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, 23356456 + ... + 23356477.

It is an arithmetic number, because the mean of its divisors is an integer number (140138802).

Almost surely, 2^513842263 is an apocalyptic number.

513842263 is a deficient number, since it is larger than the sum of its proper divisors (46712945).

513842263 is a wasteful number, since it uses less digits than its factorization.

513842263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46712944.

The product of its digits is 34560, while the sum is 34.

The square root of 513842263 is about 22668.0890901726. The cubic root of 513842263 is about 800.9583634451.

The spelling of 513842263 in words is "five hundred thirteen million, eight hundred forty-two thousand, two hundred sixty-three".