51412231 has 8 divisors (see below), whose sum is σ = 55939184. Its totient is φ = 46967040.

The previous prime is 51412217. The next prime is 51412241. The reversal of 51412231 is 13221415.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51412231 is a prime.

It is a super-2 number, since 2×51412231² = 5286434992794722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51412199 and 51412208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51412241) 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, 19125 + ... + 21646.

It is an arithmetic number, because the mean of its divisors is an integer number (6992398).

Almost surely, 2^51412231 is an apocalyptic number.

51412231 is a deficient number, since it is larger than the sum of its proper divisors (4526953).

51412231 is a wasteful number, since it uses less digits than its factorization.

51412231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40881.

The product of its digits is 240, while the sum is 19.

The square root of 51412231 is about 7170.2322835456. The cubic root of 51412231 is about 371.8394666140.

Adding to 51412231 its reverse (13221415), we get a palindrome (64633646).

The spelling of 51412231 in words is "fifty-one million, four hundred twelve thousand, two hundred thirty-one".