51135241 has 8 divisors (see below), whose sum is σ = 53272800. Its totient is φ = 49040160.

The previous prime is 51135223. The next prime is 51135247. The reversal of 51135241 is 14253115.

It is a happy number.

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 51135241 - 2⁵ = 51135209 is a prime.

It is a super-2 number, since 2×51135241² = 5229625744256162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51135247) 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, 8151 + ... + 12988.

It is an arithmetic number, because the mean of its divisors is an integer number (6659100).

Almost surely, 2^51135241 is an apocalyptic number.

It is an amenable number.

51135241 is a deficient number, since it is larger than the sum of its proper divisors (2137559).

51135241 is a wasteful number, since it uses less digits than its factorization.

51135241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21239.

The product of its digits is 600, while the sum is 22.

The square root of 51135241 is about 7150.8909235144. The cubic root of 51135241 is about 371.1704861321.

Adding to 51135241 its reverse (14253115), we get a palindrome (65388356).

The spelling of 51135241 in words is "fifty-one million, one hundred thirty-five thousand, two hundred forty-one".