51447068 has 6 divisors (see below), whose sum is σ = 90032376. Its totient is φ = 25723532.

The previous prime is 51447061. The next prime is 51447101. The reversal of 51447068 is 86074415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51447061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6430880 + ... + 6430887.

It is an arithmetic number, because the mean of its divisors is an integer number (15005396).

Almost surely, 2^51447068 is an apocalyptic number.

It is an amenable number.

51447068 is a deficient number, since it is larger than the sum of its proper divisors (38585308).

51447068 is a wasteful number, since it uses less digits than its factorization.

51447068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12861771 (or 12861769 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 51447068 is about 7172.6611519017. The cubic root of 51447068 is about 371.9234339665.

The spelling of 51447068 in words is "fifty-one million, four hundred forty-seven thousand, sixty-eight".