53500447 has 64 divisors (see below), whose sum is σ = 79027200. Its totient is φ = 34836480.

The previous prime is 53500427. The next prime is 53500501. The reversal of 53500447 is 74400535.

53500447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53500447 - 2⁷ = 53500319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53500427) 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 63 ways as a sum of consecutive naturals, for example, 551503 + ... + 551599.

It is an arithmetic number, because the mean of its divisors is an integer number (1234800).

Almost surely, 2^53500447 is an apocalyptic number.

53500447 is a deficient number, since it is larger than the sum of its proper divisors (25526753).

53500447 is a wasteful number, since it uses less digits than its factorization.

53500447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 53500447 is about 7314.3999753910. The cubic root of 53500447 is about 376.8071515893.

It can be divided in two parts, 53 and 500447, that added together give a triangular number (500500 = T₁₀₀₀).

The spelling of 53500447 in words is "fifty-three million, five hundred thousand, four hundred forty-seven".