53525218 has 4 divisors (see below), whose sum is σ = 80287830. Its totient is φ = 26762608.

The previous prime is 53525203. The next prime is 53525221. The reversal of 53525218 is 81252535.

53525218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33212169 + 20313049 = 5763^2 + 4507^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53525218.

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 as a sum of consecutive naturals, namely, 13381303 + ... + 13381306.

Almost surely, 2^53525218 is an apocalyptic number.

53525218 is a deficient number, since it is larger than the sum of its proper divisors (26762612).

53525218 is a wasteful number, since it uses less digits than its factorization.

53525218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26762611.

The product of its digits is 12000, while the sum is 31.

The square root of 53525218 is about 7316.0930830601. The cubic root of 53525218 is about 376.8652972080.

The spelling of 53525218 in words is "fifty-three million, five hundred twenty-five thousand, two hundred eighteen".