51945118 has 8 divisors (see below), whose sum is σ = 79729848. Its totient is φ = 25368504.

The previous prime is 51945079. The next prime is 51945133. The reversal of 51945118 is 81154915.

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

It is a congruent number.

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, 301921 + ... + 302092.

It is an arithmetic number, because the mean of its divisors is an integer number (9966231).

Almost surely, 2^51945118 is an apocalyptic number.

51945118 is a deficient number, since it is larger than the sum of its proper divisors (27784730).

51945118 is a wasteful number, since it uses less digits than its factorization.

51945118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604058.

The product of its digits is 7200, while the sum is 34.

The square root of 51945118 is about 7207.2961643046. The cubic root of 51945118 is about 373.1197568442.

The spelling of 51945118 in words is "fifty-one million, nine hundred forty-five thousand, one hundred eighteen".