51449064 has 16 divisors (see below), whose sum is σ = 128622720. Its totient is φ = 17149680.

The previous prime is 51449059. The next prime is 51449077. The reversal of 51449064 is 46094415.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071832 + ... + 1071879.

It is an arithmetic number, because the mean of its divisors is an integer number (8038920).

Almost surely, 2^51449064 is an apocalyptic number.

It is an amenable number.

51449064 is an abundant number, since it is smaller than the sum of its proper divisors (77173656).

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

51449064 is a wasteful number, since it uses less digits than its factorization.

51449064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143720 (or 2143716 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 51449064 is about 7172.8002899844. The cubic root of 51449064 is about 371.9282437616.

The spelling of 51449064 in words is "fifty-one million, four hundred forty-nine thousand, sixty-four".