53515222 has 4 divisors (see below), whose sum is σ = 80272836. Its totient is φ = 26757610.

The previous prime is 53515219. The next prime is 53515223. The reversal of 53515222 is 22251535.

It is a happy number.

53515222 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 is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53515223) 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 as a sum of consecutive naturals, namely, 13378804 + ... + 13378807.

It is an arithmetic number, because the mean of its divisors is an integer number (20068209).

Almost surely, 2^53515222 is an apocalyptic number.

53515222 is a deficient number, since it is larger than the sum of its proper divisors (26757614).

53515222 is a wasteful number, since it uses less digits than its factorization.

53515222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26757613.

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

The square root of 53515222 is about 7315.4098996570. The cubic root of 53515222 is about 376.8418354942.

Adding to 53515222 its reverse (22251535), we get a palindrome (75766757).

The spelling of 53515222 in words is "fifty-three million, five hundred fifteen thousand, two hundred twenty-two".