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51041 = 431187

51041 has 4 divisors (see below), whose sum is σ = 52272. Its totient is φ = 49812.

The previous prime is 51031. The next prime is 51043. The reversal of 51041 is 14015.

51041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14015 = 52803.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51041 is a prime.

It is a pancake number, because a pancake can be divided into 51041 parts by 319 straight cuts.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (51043) 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, 551 + ... + 636.

It is an arithmetic number, because the mean of its divisors is an integer number (13068).

251041 is an apocalyptic number.

It is an amenable number.

51041 is a deficient number, since it is larger than the sum of its proper divisors (1231).

51041 is a wasteful number, since it uses less digits than its factorization.

51041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 51041 is about 225.9225531017. The cubic root of 51041 is about 37.0942326531.

Adding to 51041 its reverse (14015), we get a palindrome (65056).

It can be divided in two parts, 510 and 41, that multiplied together give a triangular number (20910 = T204).

The spelling of 51041 in words is "fifty-one thousand, forty-one".

Divisors: 1 43 1187 51041