51541 has 8 divisors (see below), whose sum is σ = 60800. Its totient is φ = 42768.

The previous prime is 51539. The next prime is 51551. The reversal of 51541 is 14515.

It is a happy number.

51541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51541 - 2¹ = 51539 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51511) 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, 160 + ... + 358.

It is an arithmetic number, because the mean of its divisors is an integer number (7600).

2⁵¹⁵⁴¹ is an apocalyptic number.

It is an amenable number.

51541 is a deficient number, since it is larger than the sum of its proper divisors (9259).

51541 is a wasteful number, since it uses less digits than its factorization.

51541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243.

The product of its digits is 100, while the sum is 16.

The square root of 51541 is about 227.0264301794. The cubic root of 51541 is about 37.2149648813.

It can be divided in two parts, 515 and 41, that multiplied together give a triangular number (21115 = T₂₀₅).

The spelling of 51541 in words is "fifty-one thousand, five hundred forty-one".