5126666225 has 12 divisors (see below), whose sum is σ = 6397561884. Its totient is φ = 4075206720.

The previous prime is 5126666221. The next prime is 5126666231. The reversal of 5126666225 is 5226666215.

It can be written as a sum of positive squares in 6 ways, for example, as 19562929 + 5107103296 = 4423^2 + 71464^2 .

It is not a de Polignac number, because 5126666225 - 2² = 5126666221 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5126666221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649154 + ... + 657003.

It is an arithmetic number, because the mean of its divisors is an integer number (533130157).

Almost surely, 2^5126666225 is an apocalyptic number.

It is an amenable number.

5126666225 is a deficient number, since it is larger than the sum of its proper divisors (1270895659).

5126666225 is a wasteful number, since it uses less digits than its factorization.

5126666225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306324 (or 1306319 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 5126666225 is about 71600.7417908502. The cubic root of 5126666225 is about 1724.2954456623.

The spelling of 5126666225 in words is "five billion, one hundred twenty-six million, six hundred sixty-six thousand, two hundred twenty-five".