52116261 has 4 divisors (see below), whose sum is σ = 69488352. Its totient is φ = 34744172.

The previous prime is 52116247. The next prime is 52116269. The reversal of 52116261 is 16261125.

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 52116261 - 2⁷ = 52116133 is a prime.

It is a super-2 number, since 2×52116261² = 5432209321240242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52116269) 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, 8686041 + ... + 8686046.

It is an arithmetic number, because the mean of its divisors is an integer number (17372088).

Almost surely, 2^52116261 is an apocalyptic number.

It is an amenable number.

52116261 is a deficient number, since it is larger than the sum of its proper divisors (17372091).

52116261 is a wasteful number, since it uses less digits than its factorization.

52116261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17372090.

The product of its digits is 720, while the sum is 24.

The square root of 52116261 is about 7219.1593000847. The cubic root of 52116261 is about 373.5290788082.

Adding to 52116261 its reverse (16261125), we get a palindrome (68377386).

The spelling of 52116261 in words is "fifty-two million, one hundred sixteen thousand, two hundred sixty-one".