51050871 has 32 divisors (see below), whose sum is σ = 78144000. Its totient is φ = 32923584.

The previous prime is 51050849. The next prime is 51050873. The reversal of 51050871 is 17805015.

It is not a de Polignac number, because 51050871 - 2⁶ = 51050807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116070 + ... + 116508.

It is an arithmetic number, because the mean of its divisors is an integer number (2442000).

Almost surely, 2^51050871 is an apocalyptic number.

51050871 is a deficient number, since it is larger than the sum of its proper divisors (27093129).

51050871 is a wasteful number, since it uses less digits than its factorization.

51050871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 51050871 is about 7144.9892232249. The cubic root of 51050871 is about 370.9662376068.

Adding to 51050871 its reverse (17805015), we get a palindrome (68855886).

The spelling of 51050871 in words is "fifty-one million, fifty thousand, eight hundred seventy-one".