5278206513 has 4 divisors (see below), whose sum is σ = 7037608688. Its totient is φ = 3518804340.

The previous prime is 5278206491. The next prime is 5278206533. The reversal of 5278206513 is 3156028725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5278206513 - 2⁵ = 5278206481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5278206533) 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, 879701083 + ... + 879701088.

It is an arithmetic number, because the mean of its divisors is an integer number (1759402172).

Almost surely, 2^5278206513 is an apocalyptic number.

It is an amenable number.

5278206513 is a deficient number, since it is larger than the sum of its proper divisors (1759402175).

5278206513 is a wasteful number, since it uses less digits than its factorization.

5278206513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759402174.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 5278206513 is about 72651.2664239241. The cubic root of 5278206513 is about 1741.1203548989.

The spelling of 5278206513 in words is "five billion, two hundred seventy-eight million, two hundred six thousand, five hundred thirteen".