5205249418 has 16 divisors (see below), whose sum is σ = 7839236160. Its totient is φ = 2592189216.

The previous prime is 5205249403. The next prime is 5205249419. The reversal of 5205249418 is 8149425025.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5205249419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647230 + ... + 655222.

It is an arithmetic number, because the mean of its divisors is an integer number (489952260).

Almost surely, 2^5205249418 is an apocalyptic number.

5205249418 is a deficient number, since it is larger than the sum of its proper divisors (2633986742).

5205249418 is a wasteful number, since it uses less digits than its factorization.

5205249418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9261.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 5205249418 is about 72147.4144928285. The cubic root of 5205249418 is about 1733.0609955349.

The spelling of 5205249418 in words is "five billion, two hundred five million, two hundred forty-nine thousand, four hundred eighteen".