52073561 has 4 divisors (see below), whose sum is σ = 52732800. Its totient is φ = 51414324.

The previous prime is 52073557. The next prime is 52073569. The reversal of 52073561 is 16537025.

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 not a de Polignac number, because 52073561 - 2² = 52073557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52073569) 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, 329501 + ... + 329658.

It is an arithmetic number, because the mean of its divisors is an integer number (13183200).

Almost surely, 2^52073561 is an apocalyptic number.

It is an amenable number.

52073561 is a deficient number, since it is larger than the sum of its proper divisors (659239).

52073561 is an equidigital number, since it uses as much as digits as its factorization.

52073561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659238.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 52073561 is about 7216.2012859953. The cubic root of 52073561 is about 373.4270374023.

The spelling of 52073561 in words is "fifty-two million, seventy-three thousand, five hundred sixty-one".