53321225 has 6 divisors (see below), whose sum is σ = 66118350. Its totient is φ = 42656960.

The previous prime is 53321221. The next prime is 53321243. The reversal of 53321225 is 52212335.

53321225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 15768841 + 37552384 = 3971^2 + 6128^2 .

It is not a de Polignac number, because 53321225 - 2² = 53321221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53321225.

It is not an unprimeable number, because it can be changed into a prime (53321221) by changing a digit.

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, 1066400 + ... + 1066449.

It is an arithmetic number, because the mean of its divisors is an integer number (11019725).

Almost surely, 2^53321225 is an apocalyptic number.

It is an amenable number.

53321225 is a deficient number, since it is larger than the sum of its proper divisors (12797125).

53321225 is a wasteful number, since it uses less digits than its factorization.

53321225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132859 (or 2132854 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 53321225 is about 7302.1383854320. The cubic root of 53321225 is about 376.3859234516.

The spelling of 53321225 in words is "fifty-three million, three hundred twenty-one thousand, two hundred twenty-five".