52278487225 has 12 divisors (see below), whose sum is σ = 64916778220. Its totient is φ = 41763787200.

The previous prime is 52278487223. The next prime is 52278487231.

52278487225 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 15874992016 + 36403495209 = 125996^2 + 190797^2 .

It is not a de Polignac number, because 52278487225 - 2¹ = 52278487223 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (52278487223) 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, 1456986 + ... + 1492435.

Almost surely, 2^52278487225 is an apocalyptic number.

It is an amenable number.

52278487225 is a deficient number, since it is larger than the sum of its proper divisors (12638290995).

52278487225 is a wasteful number, since it uses less digits than its factorization.

52278487225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950140 (or 2950135 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 52.

The spelling of 52278487225 in words is "fifty-two billion, two hundred seventy-eight million, four hundred eighty-seven thousand, two hundred twenty-five".