51447360 has 56 divisors (see below), whose sum is σ = 163348416. Its totient is φ = 13719040.

The previous prime is 51447359. The next prime is 51447371. The reversal of 51447360 is 6374415.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25836 + ... + 27755.

It is an arithmetic number, because the mean of its divisors is an integer number (2916936).

Almost surely, 2^51447360 is an apocalyptic number.

It is an amenable number.

51447360 is an abundant number, since it is smaller than the sum of its proper divisors (111901056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51447360 is a wasteful number, since it uses less digits than its factorization.

51447360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53611 (or 53601 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 51447360 is about 7172.6815069401. The cubic root of 51447360 is about 371.9241376116.

It can be divided in two parts, 514 and 47360, that added together give a palindrome (47874).

The spelling of 51447360 in words is "fifty-one million, four hundred forty-seven thousand, three hundred sixty".