51044187 has 4 divisors (see below), whose sum is σ = 68058920. Its totient is φ = 34029456.

The previous prime is 51044179. The next prime is 51044233. The reversal of 51044187 is 78144015.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51044187 - 2³ = 51044179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51044137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8507362 + ... + 8507367.

It is an arithmetic number, because the mean of its divisors is an integer number (17014730).

Almost surely, 2^51044187 is an apocalyptic number.

51044187 is a deficient number, since it is larger than the sum of its proper divisors (17014733).

51044187 is a wasteful number, since it uses less digits than its factorization.

51044187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17014732.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 51044187 is about 7144.5214675302. The cubic root of 51044187 is about 370.9500469164.

The spelling of 51044187 in words is "fifty-one million, forty-four thousand, one hundred eighty-seven".