52661723 has 4 divisors (see below), whose sum is σ = 52718280. Its totient is φ = 52605168.

The previous prime is 52661683. The next prime is 52661731. The reversal of 52661723 is 32716625.

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

It is a cyclic number.

It is not a de Polignac number, because 52661723 - 2⁶ = 52661659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52661723.

It is not an unprimeable number, because it can be changed into a prime (52661773) 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, 26858 + ... + 28751.

It is an arithmetic number, because the mean of its divisors is an integer number (13179570).

Almost surely, 2^52661723 is an apocalyptic number.

52661723 is a deficient number, since it is larger than the sum of its proper divisors (56557).

52661723 is an equidigital number, since it uses as much as digits as its factorization.

52661723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56556.

The product of its digits is 15120, while the sum is 32.

The square root of 52661723 is about 7256.8397391702. The cubic root of 52661723 is about 374.8277087059.

The spelling of 52661723 in words is "fifty-two million, six hundred sixty-one thousand, seven hundred twenty-three".