53340215 has 4 divisors (see below), whose sum is σ = 64008264. Its totient is φ = 42672168.

The previous prime is 53340173. The next prime is 53340227. The reversal of 53340215 is 51204335.

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 53340215 - 2¹⁰ = 53339191 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, 5334017 + ... + 5334026.

It is an arithmetic number, because the mean of its divisors is an integer number (16002066).

Almost surely, 2^53340215 is an apocalyptic number.

53340215 is a deficient number, since it is larger than the sum of its proper divisors (10668049).

53340215 is a wasteful number, since it uses less digits than its factorization.

53340215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10668048.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53340215 is about 7303.4385737131. The cubic root of 53340215 is about 376.4306005968.

The spelling of 53340215 in words is "fifty-three million, three hundred forty thousand, two hundred fifteen".