53244215 has 4 divisors (see below), whose sum is σ = 63893064. Its totient is φ = 42595368.

The previous prime is 53244193. The next prime is 53244223. The reversal of 53244215 is 51244235.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 53244215 - 2⁶ = 53244151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5324417 + ... + 5324426.

It is an arithmetic number, because the mean of its divisors is an integer number (15973266).

Almost surely, 2^53244215 is an apocalyptic number.

53244215 is a deficient number, since it is larger than the sum of its proper divisors (10648849).

53244215 is a wasteful number, since it uses less digits than its factorization.

53244215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10648848.

The product of its digits is 4800, while the sum is 26.

The square root of 53244215 is about 7296.8633672284. The cubic root of 53244215 is about 376.2046357598.

The spelling of 53244215 in words is "fifty-three million, two hundred forty-four thousand, two hundred fifteen".