53265215 has 4 divisors (see below), whose sum is σ = 63918264. Its totient is φ = 42612168.

The previous prime is 53265211. The next prime is 53265221. The reversal of 53265215 is 51256235.

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 53265215 - 2² = 53265211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53265211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5326517 + ... + 5326526.

It is an arithmetic number, because the mean of its divisors is an integer number (15979566).

Almost surely, 2^53265215 is an apocalyptic number.

53265215 is a deficient number, since it is larger than the sum of its proper divisors (10653049).

53265215 is a wasteful number, since it uses less digits than its factorization.

53265215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10653048.

The product of its digits is 9000, while the sum is 29.

The square root of 53265215 is about 7298.3021998270. The cubic root of 53265215 is about 376.2540887625.

The spelling of 53265215 in words is "fifty-three million, two hundred sixty-five thousand, two hundred fifteen".