53265621 has 8 divisors (see below), whose sum is σ = 71066944. Its totient is φ = 35487360.

The previous prime is 53265587. The next prime is 53265623. The reversal of 53265621 is 12656235.

53265621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53265621 - 2¹⁴ = 53249237 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 (53265623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 645 + ... + 10341.

It is an arithmetic number, because the mean of its divisors is an integer number (8883368).

Almost surely, 2^53265621 is an apocalyptic number.

It is an amenable number.

53265621 is a deficient number, since it is larger than the sum of its proper divisors (17801323).

53265621 is a wasteful number, since it uses less digits than its factorization.

53265621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11531.

The product of its digits is 10800, while the sum is 30.

The square root of 53265621 is about 7298.3300144622. The cubic root of 53265621 is about 376.2550447258.

The spelling of 53265621 in words is "fifty-three million, two hundred sixty-five thousand, six hundred twenty-one".