53225215 has 16 divisors (see below), whose sum is σ = 67836960. Its totient is φ = 39951360.

The previous prime is 53225201. The next prime is 53225219. The reversal of 53225215 is 51252235.

It is a happy number.

It is not a de Polignac number, because 53225215 - 2⁷ = 53225087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53225215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53225219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34000 + ... + 35530.

It is an arithmetic number, because the mean of its divisors is an integer number (4239810).

Almost surely, 2^53225215 is an apocalyptic number.

53225215 is a deficient number, since it is larger than the sum of its proper divisors (14611745).

53225215 is a wasteful number, since it uses less digits than its factorization.

53225215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962.

The product of its digits is 3000, while the sum is 25.

The square root of 53225215 is about 7295.5613217901. The cubic root of 53225215 is about 376.1598813611.

The spelling of 53225215 in words is "fifty-three million, two hundred twenty-five thousand, two hundred fifteen".