53128470 has 16 divisors (see below), whose sum is σ = 127508400. Its totient is φ = 14167584.

The previous prime is 53128457. The next prime is 53128477. The reversal of 53128470 is 7482135.

53128470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1770949 = 53128470 / (5 + 3 + 1 + 2 + 8 + 4 + 7 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53128477) 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, 885445 + ... + 885504.

It is an arithmetic number, because the mean of its divisors is an integer number (7969275).

Almost surely, 2^53128470 is an apocalyptic number.

53128470 is an abundant number, since it is smaller than the sum of its proper divisors (74379930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53128470 is a wasteful number, since it uses less digits than its factorization.

53128470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770959.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 53128470 is about 7288.9279047059. The cubic root of 53128470 is about 375.9318336891.

The spelling of 53128470 in words is "fifty-three million, one hundred twenty-eight thousand, four hundred seventy".