53123215 has 32 divisors (see below), whose sum is σ = 72938880. Its totient is φ = 36900864.

The previous prime is 53123197. The next prime is 53123219. The reversal of 53123215 is 51232135.

53123215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 53123215 - 2⁷ = 53123087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53123219) 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 31 ways as a sum of consecutive naturals, for example, 56227 + ... + 57163.

It is an arithmetic number, because the mean of its divisors is an integer number (2279340).

Almost surely, 2^53123215 is an apocalyptic number.

53123215 is a deficient number, since it is larger than the sum of its proper divisors (19815665).

53123215 is a wasteful number, since it uses less digits than its factorization.

53123215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011.

The product of its digits is 900, while the sum is 22.

The square root of 53123215 is about 7288.5674175382. The cubic root of 53123215 is about 375.9194386592.

The spelling of 53123215 in words is "fifty-three million, one hundred twenty-three thousand, two hundred fifteen".