52720273 has 4 divisors (see below), whose sum is σ = 52778560. Its totient is φ = 52661988.

The previous prime is 52720267. The next prime is 52720277. The reversal of 52720273 is 37202725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52720273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52720277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27765 + ... + 29602.

It is an arithmetic number, because the mean of its divisors is an integer number (13194640).

Almost surely, 2^52720273 is an apocalyptic number.

It is an amenable number.

52720273 is a deficient number, since it is larger than the sum of its proper divisors (58287).

52720273 is an equidigital number, since it uses as much as digits as its factorization.

52720273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58286.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 52720273 is about 7260.8727436858. The cubic root of 52720273 is about 374.9665700570.

Adding to 52720273 its reverse (37202725), we get a palindrome (89922998).

It can be divided in two parts, 5 and 2720273, that added together give a triangular number (2720278 = T₂₃₃₂).

The spelling of 52720273 in words is "fifty-two million, seven hundred twenty thousand, two hundred seventy-three".