5205121115 has 32 divisors (see below), whose sum is σ = 6938213760. Its totient is φ = 3730585600.

The previous prime is 5205121073. The next prime is 5205121121. The reversal of 5205121115 is 5111215025.

It is not a de Polignac number, because 5205121115 - 2⁸ = 5205120859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160145 + ... + 189885.

It is an arithmetic number, because the mean of its divisors is an integer number (216819180).

Almost surely, 2^5205121115 is an apocalyptic number.

5205121115 is a deficient number, since it is larger than the sum of its proper divisors (1733092645).

5205121115 is a wasteful number, since it uses less digits than its factorization.

5205121115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29863.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 5205121115 is about 72146.5253148064. The cubic root of 5205121115 is about 1733.0467561435.

The spelling of 5205121115 in words is "five billion, two hundred five million, one hundred twenty-one thousand, one hundred fifteen".