51450065 has 8 divisors (see below), whose sum is σ = 62786880. Its totient is φ = 40462192.

The previous prime is 51450053. The next prime is 51450067. The reversal of 51450065 is 56005415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51450065 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51450067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86909 + ... + 87498.

It is an arithmetic number, because the mean of its divisors is an integer number (7848360).

Almost surely, 2^51450065 is an apocalyptic number.

It is an amenable number.

51450065 is a deficient number, since it is larger than the sum of its proper divisors (11336815).

51450065 is a wasteful number, since it uses less digits than its factorization.

51450065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174471.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 51450065 is about 7172.8700671349. The cubic root of 51450065 is about 371.9306558415.

The spelling of 51450065 in words is "fifty-one million, four hundred fifty thousand, sixty-five".