5156120225 has 6 divisors (see below), whose sum is σ = 6393589110. Its totient is φ = 4124896160.

The previous prime is 5156120209. The next prime is 5156120227. The reversal of 5156120225 is 5220216515.

It can be written as a sum of positive squares in 3 ways, for example, as 305809 + 5155814416 = 553^2 + 71804^2 .

It is not a de Polignac number, because 5156120225 - 2⁴ = 5156120209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5156120227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103122380 + ... + 103122429.

It is an arithmetic number, because the mean of its divisors is an integer number (1065598185).

Almost surely, 2^5156120225 is an apocalyptic number.

It is an amenable number.

5156120225 is a deficient number, since it is larger than the sum of its proper divisors (1237468885).

5156120225 is a wasteful number, since it uses less digits than its factorization.

5156120225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206244819 (or 206244814 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 5156120225 is about 71806.1294389274. The cubic root of 5156120225 is about 1727.5913136410.

The spelling of 5156120225 in words is "five billion, one hundred fifty-six million, one hundred twenty thousand, two hundred twenty-five".