51212041 has 4 divisors (see below), whose sum is σ = 54224532. Its totient is φ = 48199552.

The previous prime is 51212039. The next prime is 51212047. The reversal of 51212041 is 14021215.

51212041 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.

It can be written as a sum of positive squares in 2 ways, for example, as 22278400 + 28933641 = 4720^2 + 5379^2 .

It is a cyclic number.

It is not a de Polignac number, because 51212041 - 2¹ = 51212039 is a prime.

It is a super-3 number, since 3×51212041³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51212047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506220 + ... + 1506253.

It is an arithmetic number, because the mean of its divisors is an integer number (13556133).

Almost surely, 2^51212041 is an apocalyptic number.

It is an amenable number.

51212041 is a deficient number, since it is larger than the sum of its proper divisors (3012491).

51212041 is a wasteful number, since it uses less digits than its factorization.

51212041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012490.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 51212041 is about 7156.2588689901. The cubic root of 51212041 is about 371.3562134549.

Adding to 51212041 its reverse (14021215), we get a palindrome (65233256).

The spelling of 51212041 in words is "fifty-one million, two hundred twelve thousand, forty-one".