53265515 has 4 divisors (see below), whose sum is σ = 63918624. Its totient is φ = 42612408.

The previous prime is 53265503. The next prime is 53265529. The reversal of 53265515 is 51556235.

53265515 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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53265515 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5326547 + ... + 5326556.

It is an arithmetic number, because the mean of its divisors is an integer number (15979656).

Almost surely, 2^53265515 is an apocalyptic number.

53265515 is a deficient number, since it is larger than the sum of its proper divisors (10653109).

53265515 is a wasteful number, since it uses less digits than its factorization.

53265515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10653108.

The product of its digits is 22500, while the sum is 32.

The square root of 53265515 is about 7298.3227525233. The cubic root of 53265515 is about 376.2547951398.

The spelling of 53265515 in words is "fifty-three million, two hundred sixty-five thousand, five hundred fifteen".