63151225 has 6 divisors (see below), whose sum is σ = 78307550. Its totient is φ = 50520960.

The previous prime is 63151223. The next prime is 63151271. The reversal of 63151225 is 52215136.

It can be written as a sum of positive squares in 3 ways, for example, as 9290304 + 53860921 = 3048^2 + 7339^2 .

It is not a de Polignac number, because 63151225 - 2¹ = 63151223 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: 2526049 = 63151225 / (6 + 3 + 1 + 5 + 1 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 63151225.

It is not an unprimeable number, because it can be changed into a prime (63151223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1263000 + ... + 1263049.

Almost surely, 2^63151225 is an apocalyptic number.

It is an amenable number.

63151225 is a deficient number, since it is larger than the sum of its proper divisors (15156325).

63151225 is a wasteful number, since it uses less digits than its factorization.

63151225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526059 (or 2526054 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 63151225 is about 7946.7745029037. The cubic root of 63151225 is about 398.2238435946.

The spelling of 63151225 in words is "sixty-three million, one hundred fifty-one thousand, two hundred twenty-five".