51005049 has 8 divisors (see below), whose sum is σ = 72007200. Its totient is φ = 32003136.

The previous prime is 51005039. The next prime is 51005057. The reversal of 51005049 is 94050015.

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

It is not a de Polignac number, because 51005049 - 2¹³ = 50996857 is a prime.

51005049 is a modest number, since divided by 5049 gives 51 as remainder.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51005029) 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, 499999 + ... + 500100.

It is an arithmetic number, because the mean of its divisors is an integer number (9000900).

Almost surely, 2^51005049 is an apocalyptic number.

It is an amenable number.

51005049 is a deficient number, since it is larger than the sum of its proper divisors (21002151).

51005049 is a wasteful number, since it uses less digits than its factorization.

51005049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000119.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 51005049 is about 7141.7819205014. The cubic root of 51005049 is about 370.8552143410.

The spelling of 51005049 in words is "fifty-one million, five thousand, forty-nine".