52661361 has 16 divisors (see below), whose sum is σ = 73834560. Its totient is φ = 33337920.

The previous prime is 52661347. The next prime is 52661377. The reversal of 52661361 is 16316625.

It is not a de Polignac number, because 52661361 - 2⁷ = 52661233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52661341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346 + ... + 10268.

It is an arithmetic number, because the mean of its divisors is an integer number (4614660).

Almost surely, 2^52661361 is an apocalyptic number.

It is an amenable number.

52661361 is a deficient number, since it is larger than the sum of its proper divisors (21173199).

52661361 is a wasteful number, since it uses less digits than its factorization.

52661361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016.

The product of its digits is 6480, while the sum is 30.

The square root of 52661361 is about 7256.8147971407. The cubic root of 52661361 is about 374.8268498408.

Adding to 52661361 its reverse (16316625), we get a palindrome (68977986).

The spelling of 52661361 in words is "fifty-two million, six hundred sixty-one thousand, three hundred sixty-one".