152206225 has 6 divisors (see below), whose sum is σ = 188735750. Its totient is φ = 121764960.

The previous prime is 152206217. The next prime is 152206231. The reversal of 152206225 is 522602251.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 36084049 + 116122176 = 6007^2 + 10776^2 .

It is not a de Polignac number, because 152206225 - 2³ = 152206217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 6088249 = 152206225 / (1 + 5 + 2 + 2 + 0 + 6 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 152206225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3044100 + ... + 3044149.

Almost surely, 2^152206225 is an apocalyptic number.

It is an amenable number.

152206225 is a deficient number, since it is larger than the sum of its proper divisors (36529525).

152206225 is an equidigital number, since it uses as much as digits as its factorization.

152206225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088259 (or 6088254 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 152206225 is about 12337.1886992134. The cubic root of 152206225 is about 533.9215764328.

Adding to 152206225 its reverse (522602251), we get a palindrome (674808476).

The spelling of 152206225 in words is "one hundred fifty-two million, two hundred six thousand, two hundred twenty-five".