5166856725 has 12 divisors (see below), whose sum is σ = 8542536576. Its totient is φ = 2755656880.

The previous prime is 5166856691. The next prime is 5166856729. The reversal of 5166856725 is 5276586615.

It is a happy number.

It is not a de Polignac number, because 5166856725 - 2⁸ = 5166856469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166856729) 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, 34445637 + ... + 34445786.

It is an arithmetic number, because the mean of its divisors is an integer number (711878048).

Almost surely, 2^5166856725 is an apocalyptic number.

It is an amenable number.

5166856725 is a deficient number, since it is larger than the sum of its proper divisors (3375679851).

5166856725 is a wasteful number, since it uses less digits than its factorization.

5166856725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68891436 (or 68891431 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 51.

The square root of 5166856725 is about 71880.8508922926. The cubic root of 5166856725 is about 1728.7895934810.

The spelling of 5166856725 in words is "five billion, one hundred sixty-six million, eight hundred fifty-six thousand, seven hundred twenty-five".