272505493 has 4 divisors (see below), whose sum is σ = 293467468. Its totient is φ = 251543520.

The previous prime is 272505463. The next prime is 272505509. The reversal of 272505493 is 394505272.

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 33895684 + 238609809 = 5822^2 + 15447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272505493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272505413) 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 3 ways as a sum of consecutive naturals, for example, 10480968 + ... + 10480993.

It is an arithmetic number, because the mean of its divisors is an integer number (73366867).

Almost surely, 2^272505493 is an apocalyptic number.

It is an amenable number.

272505493 is a deficient number, since it is larger than the sum of its proper divisors (20961975).

272505493 is a wasteful number, since it uses less digits than its factorization.

272505493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20961974.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 272505493 is about 16507.7403965534. The cubic root of 272505493 is about 648.3234846865.

The spelling of 272505493 in words is "two hundred seventy-two million, five hundred five thousand, four hundred ninety-three".