51641312 has 24 divisors (see below), whose sum is σ = 101930976. Its totient is φ = 25754112.

The previous prime is 51641311. The next prime is 51641333. The reversal of 51641312 is 21314615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51641311) 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, 11993 + ... + 15719.

It is an arithmetic number, because the mean of its divisors is an integer number (4247124).

Almost surely, 2^51641312 is an apocalyptic number.

It is an amenable number.

51641312 is a deficient number, since it is larger than the sum of its proper divisors (50289664).

51641312 is a wasteful number, since it uses less digits than its factorization.

51641312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170 (or 4162 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 51641312 is about 7186.1889760846. The cubic root of 51641312 is about 372.3909252281.

Adding to 51641312 its reverse (21314615), we get a palindrome (72955927).

The spelling of 51641312 in words is "fifty-one million, six hundred forty-one thousand, three hundred twelve".