51832261 has 8 divisors (see below), whose sum is σ = 55875960. Its totient is φ = 47796672.

The previous prime is 51832237. The next prime is 51832289. The reversal of 51832261 is 16223815.

It can be written as a sum of positive squares in 4 ways, for example, as 136161 + 51696100 = 369^2 + 7190^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51832261 - 2⁵ = 51832229 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 (51832861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21051 + ... + 23383.

It is an arithmetic number, because the mean of its divisors is an integer number (6984495).

Almost surely, 2^51832261 is an apocalyptic number.

It is an amenable number.

51832261 is a deficient number, since it is larger than the sum of its proper divisors (4043699).

51832261 is a wasteful number, since it uses less digits than its factorization.

51832261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055.

The product of its digits is 2880, while the sum is 28.

The square root of 51832261 is about 7199.4625493852. The cubic root of 51832261 is about 372.8493451056.

The spelling of 51832261 in words is "fifty-one million, eight hundred thirty-two thousand, two hundred sixty-one".