52180225 has 12 divisors (see below), whose sum is σ = 68510124. Its totient is φ = 39288320.

The previous prime is 52180217. The next prime is 52180229. The reversal of 52180225 is 52208125.

It can be written as a sum of positive squares in 6 ways, for example, as 5817744 + 46362481 = 2412^2 + 6809^2 .

It is not a de Polignac number, because 52180225 - 2³ = 52180217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52180225.

It is not an unprimeable number, because it can be changed into a prime (52180229) 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, 60964 + ... + 61813.

It is an arithmetic number, because the mean of its divisors is an integer number (5709177).

Almost surely, 2^52180225 is an apocalyptic number.

It is an amenable number.

52180225 is a deficient number, since it is larger than the sum of its proper divisors (16329899).

52180225 is a wasteful number, since it uses less digits than its factorization.

52180225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122804 (or 122799 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 52180225 is about 7223.5880973378. The cubic root of 52180225 is about 373.6818311709.

The spelling of 52180225 in words is "fifty-two million, one hundred eighty thousand, two hundred twenty-five".