51446313 has 16 divisors (see below), whose sum is σ = 76368000. Its totient is φ = 34229520.

The previous prime is 51446299. The next prime is 51446321. The reversal of 51446313 is 31364415.

It is not a de Polignac number, because 51446313 - 2⁶ = 51446249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51446333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14583 + ... + 17763.

It is an arithmetic number, because the mean of its divisors is an integer number (4773000).

Almost surely, 2^51446313 is an apocalyptic number.

It is an amenable number.

51446313 is a deficient number, since it is larger than the sum of its proper divisors (24921687).

51446313 is a wasteful number, since it uses less digits than its factorization.

51446313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789 (or 3783 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 51446313 is about 7172.6085213122. The cubic root of 51446313 is about 371.9216145977.

The spelling of 51446313 in words is "fifty-one million, four hundred forty-six thousand, three hundred thirteen".