51212235441 has 8 divisors (see below), whose sum is σ = 69302129824. Its totient is φ = 33631915680.

The previous prime is 51212235421. The next prime is 51212235443. The reversal of 51212235441 is 14453221215.

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

It is not a de Polignac number, because 51212235441 - 2⁶ = 51212235377 is a prime.

It is a super-3 number, since 3×51212235441³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51212235399 and 51212235408.

It is not an unprimeable number, because it can be changed into a prime (51212235443) 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, 127393420 + ... + 127393821.

It is an arithmetic number, because the mean of its divisors is an integer number (8662766228).

Almost surely, 2^51212235441 is an apocalyptic number.

It is an amenable number.

51212235441 is a deficient number, since it is larger than the sum of its proper divisors (18089894383).

51212235441 is a wasteful number, since it uses less digits than its factorization.

51212235441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254787311.

The product of its digits is 9600, while the sum is 30.

Adding to 51212235441 its reverse (14453221215), we get a palindrome (65665456656).

The spelling of 51212235441 in words is "fifty-one billion, two hundred twelve million, two hundred thirty-five thousand, four hundred forty-one".