51194313 has 12 divisors (see below), whose sum is σ = 74779380. Its totient is φ = 33745536.

The previous prime is 51194287. The next prime is 51194321. The reversal of 51194313 is 31349115.

It can be written as a sum of positive squares in 2 ways, for example, as 19079424 + 32114889 = 4368^2 + 5667^2 .

It is not a de Polignac number, because 51194313 - 2⁸ = 51194057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51194393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31156 + ... + 32757.

It is an arithmetic number, because the mean of its divisors is an integer number (6231615).

Almost surely, 2^51194313 is an apocalyptic number.

It is an amenable number.

51194313 is a deficient number, since it is larger than the sum of its proper divisors (23585067).

51194313 is a wasteful number, since it uses less digits than its factorization.

51194313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64008 (or 64005 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 51194313 is about 7155.0201257579. The cubic root of 51194313 is about 371.3133578905.

The spelling of 51194313 in words is "fifty-one million, one hundred ninety-four thousand, three hundred thirteen".