52661351 has 6 divisors (see below), whose sum is σ = 52946280. Its totient is φ = 52377548.

The previous prime is 52661347. The next prime is 52661377. The reversal of 52661351 is 15316625.

52661351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52661351 - 2² = 52661347 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137306 + ... + 137688.

It is an arithmetic number, because the mean of its divisors is an integer number (8824380).

Almost surely, 2^52661351 is an apocalyptic number.

52661351 is a deficient number, since it is larger than the sum of its proper divisors (284929).

52661351 is an frugal number, since it uses more digits than its factorization.

52661351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125 (or 742 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 52661351 is about 7256.8141081331. The cubic root of 52661351 is about 374.8268261152.

Adding to 52661351 its reverse (15316625), we get a palindrome (67977976).

The spelling of 52661351 in words is "fifty-two million, six hundred sixty-one thousand, three hundred fifty-one".