51470871 has 16 divisors (see below), whose sum is σ = 70625280. Its totient is φ = 33324480.

The previous prime is 51470843. The next prime is 51470899. The reversal of 51470871 is 17807415.

It is an interprime number because it is at equal distance from previous prime (51470843) and next prime (51470899).

It is not a de Polignac number, because 51470871 - 2⁷ = 51470743 is a prime.

It is a super-2 number, since 2×51470871² = 5298501122997282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51470821) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23595 + ... + 25683.

It is an arithmetic number, because the mean of its divisors is an integer number (4414080).

Almost surely, 2^51470871 is an apocalyptic number.

51470871 is a deficient number, since it is larger than the sum of its proper divisors (19154409).

51470871 is a wasteful number, since it uses less digits than its factorization.

51470871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 51470871 is about 7174.3202465460. The cubic root of 51470871 is about 371.9807843583.

The spelling of 51470871 in words is "fifty-one million, four hundred seventy thousand, eight hundred seventy-one".