52340661 has 10 divisors (see below), whose sum is σ = 78188022. Its totient is φ = 34893720.

The previous prime is 52340647. The next prime is 52340707. The reversal of 52340661 is 16604325.

It can be written as a sum of positive squares in only one way, i.e., 34751025 + 17589636 = 5895^2 + 4194^2 .

It is not a de Polignac number, because 52340661 - 2⁶ = 52340597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52340461) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 323010 + ... + 323171.

Almost surely, 2^52340661 is an apocalyptic number.

It is an amenable number.

52340661 is a deficient number, since it is larger than the sum of its proper divisors (25847361).

52340661 is an equidigital number, since it uses as much as digits as its factorization.

52340661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646193 (or 646184 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 52340661 is about 7234.6845819289. The cubic root of 52340661 is about 374.0644197802.

Adding to 52340661 its reverse (16604325), we get a palindrome (68944986).

The spelling of 52340661 in words is "fifty-two million, three hundred forty thousand, six hundred sixty-one".