520078103 has 4 divisors (see below), whose sum is σ = 536854848. Its totient is φ = 503301360.

The previous prime is 520078099. The next prime is 520078109. The reversal of 520078103 is 301870025.

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 520078103 - 2² = 520078099 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 (520078109) 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, 8388326 + ... + 8388387.

It is an arithmetic number, because the mean of its divisors is an integer number (134213712).

Almost surely, 2^520078103 is an apocalyptic number.

520078103 is a deficient number, since it is larger than the sum of its proper divisors (16776745).

520078103 is a wasteful number, since it uses less digits than its factorization.

520078103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16776744.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 520078103 is about 22805.2209592453. The cubic root of 520078103 is about 804.1854100541.

The spelling of 520078103 in words is "five hundred twenty million, seventy-eight thousand, one hundred three".