53145615 has 8 divisors (see below), whose sum is σ = 85033008. Its totient is φ = 28344320.

The previous prime is 53145613. The next prime is 53145619. The reversal of 53145615 is 51654135.

53145615 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 53145615 - 2¹ = 53145613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53145613) 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, 1771506 + ... + 1771535.

It is an arithmetic number, because the mean of its divisors is an integer number (10629126).

Almost surely, 2^53145615 is an apocalyptic number.

53145615 is a deficient number, since it is larger than the sum of its proper divisors (31887393).

53145615 is a wasteful number, since it uses less digits than its factorization.

53145615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543049.

The product of its digits is 9000, while the sum is 30.

The square root of 53145615 is about 7290.1039087245. The cubic root of 53145615 is about 375.9722681184.

The spelling of 53145615 in words is "fifty-three million, one hundred forty-five thousand, six hundred fifteen".