53522215 has 8 divisors (see below), whose sum is σ = 64266048. Its totient is φ = 42791520.

The previous prime is 53522207. The next prime is 53522267. The reversal of 53522215 is 51222535.

It is a happy number.

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

It is not a de Polignac number, because 53522215 - 2³ = 53522207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53522215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13345 + ... + 16885.

It is an arithmetic number, because the mean of its divisors is an integer number (8033256).

Almost surely, 2^53522215 is an apocalyptic number.

53522215 is a deficient number, since it is larger than the sum of its proper divisors (10743833).

53522215 is a wasteful number, since it uses less digits than its factorization.

53522215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6569.

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

The square root of 53522215 is about 7315.8878476915. The cubic root of 53522215 is about 376.8582491430.

The spelling of 53522215 in words is "fifty-three million, five hundred twenty-two thousand, two hundred fifteen".