53225618 has 8 divisors (see below), whose sum is σ = 80849280. Its totient is φ = 26275860.

The previous prime is 53225617. The next prime is 53225633. The reversal of 53225618 is 81652235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×53225618² = 5665932822963848, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53225617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168278 + ... + 168593.

It is an arithmetic number, because the mean of its divisors is an integer number (10106160).

Almost surely, 2^53225618 is an apocalyptic number.

53225618 is a deficient number, since it is larger than the sum of its proper divisors (27623662).

53225618 is a wasteful number, since it uses less digits than its factorization.

53225618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336952.

The product of its digits is 14400, while the sum is 32.

The square root of 53225618 is about 7295.5889412713. The cubic root of 53225618 is about 376.1608307360.

The spelling of 53225618 in words is "fifty-three million, two hundred twenty-five thousand, six hundred eighteen".