5298998765 has 4 divisors (see below), whose sum is σ = 6358798524. Its totient is φ = 4239199008.

The previous prime is 5298998737. The next prime is 5298998767. The reversal of 5298998765 is 5678998925.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2237479204 + 3061519561 = 47302^2 + 55331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5298998765 is a prime.

It is a super-2 number, since 2×5298998765² = 56158775822943050450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5298998695 and 5298998704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5298998767) 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, 529899872 + ... + 529899881.

It is an arithmetic number, because the mean of its divisors is an integer number (1589699631).

Almost surely, 2^5298998765 is an apocalyptic number.

It is an amenable number.

5298998765 is a deficient number, since it is larger than the sum of its proper divisors (1059799759).

5298998765 is a wasteful number, since it uses less digits than its factorization.

5298998765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059799758.

The product of its digits is 97977600, while the sum is 68.

The square root of 5298998765 is about 72794.2220577980. Note that the first 3 decimals coincide. The cubic root of 5298998765 is about 1743.4036039961.

The spelling of 5298998765 in words is "five billion, two hundred ninety-eight million, nine hundred ninety-eight thousand, seven hundred sixty-five".