51445814 has 32 divisors (see below), whose sum is σ = 90637056. Its totient is φ = 21445920.

The previous prime is 51445813. The next prime is 51445837. The reversal of 51445814 is 41854415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51445813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91097 + ... + 91659.

It is an arithmetic number, because the mean of its divisors is an integer number (2832408).

Almost surely, 2^51445814 is an apocalyptic number.

51445814 is a deficient number, since it is larger than the sum of its proper divisors (39191242).

51445814 is a wasteful number, since it uses less digits than its factorization.

51445814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 12800, while the sum is 32.

The square root of 51445814 is about 7172.5737361145. The cubic root of 51445814 is about 371.9204121177.

The spelling of 51445814 in words is "fifty-one million, four hundred forty-five thousand, eight hundred fourteen".