53872573 has 4 divisors (see below), whose sum is σ = 53922780. Its totient is φ = 53822368.

The previous prime is 53872547. The next prime is 53872607. The reversal of 53872573 is 37527835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11648569 + 42224004 = 3413^2 + 6498^2 .

It is a cyclic number.

It is not a de Polignac number, because 53872573 - 2⁹ = 53872061 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53872673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23458 + ... + 25651.

It is an arithmetic number, because the mean of its divisors is an integer number (13480695).

Almost surely, 2^53872573 is an apocalyptic number.

It is an amenable number.

53872573 is a deficient number, since it is larger than the sum of its proper divisors (50207).

53872573 is a wasteful number, since it uses less digits than its factorization.

53872573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50206.

The product of its digits is 176400, while the sum is 40.

The square root of 53872573 is about 7339.7937981935. The cubic root of 53872573 is about 377.6787697642.

It can be divided in two parts, 53872 and 573, that added together give a palindrome (54445).

The spelling of 53872573 in words is "fifty-three million, eight hundred seventy-two thousand, five hundred seventy-three".