51004115 has 4 divisors (see below), whose sum is σ = 61204944. Its totient is φ = 40803288.

The previous prime is 51004103. The next prime is 51004153. The reversal of 51004115 is 51140015.

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

It is a cyclic number.

It is not a de Polignac number, because 51004115 - 2⁴ = 51004099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51004093 and 51004102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100407 + ... + 5100416.

It is an arithmetic number, because the mean of its divisors is an integer number (15301236).

Almost surely, 2^51004115 is an apocalyptic number.

51004115 is a deficient number, since it is larger than the sum of its proper divisors (10200829).

51004115 is a wasteful number, since it uses less digits than its factorization.

51004115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10200828.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 51004115 is about 7141.7165303588. The cubic root of 51004115 is about 370.8529506378.

The spelling of 51004115 in words is "fifty-one million, four thousand, one hundred fifteen".