51194847 has 16 divisors (see below), whose sum is σ = 75306240. Its totient is φ = 30676800.

The previous prime is 51194839. The next prime is 51194861. The reversal of 51194847 is 74849115.

It is not a de Polignac number, because 51194847 - 2³ = 51194839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51194807) 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, 5779 + ... + 11652.

It is an arithmetic number, because the mean of its divisors is an integer number (4706640).

Almost surely, 2^51194847 is an apocalyptic number.

51194847 is a deficient number, since it is larger than the sum of its proper divisors (24111393).

51194847 is a wasteful number, since it uses less digits than its factorization.

51194847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17534.

The product of its digits is 40320, while the sum is 39.

The square root of 51194847 is about 7155.0574421174. The cubic root of 51194847 is about 371.3146489235.

The spelling of 51194847 in words is "fifty-one million, one hundred ninety-four thousand, eight hundred forty-seven".