51861175 has 6 divisors (see below), whose sum is σ = 64307888. Its totient is φ = 41488920.

The previous prime is 51861167. The next prime is 51861247. The reversal of 51861175 is 57116815.

It is not a de Polignac number, because 51861175 - 2³ = 51861167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51861175.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1037199 + ... + 1037248.

Almost surely, 2^51861175 is an apocalyptic number.

51861175 is a deficient number, since it is larger than the sum of its proper divisors (12446713).

51861175 is a wasteful number, since it uses less digits than its factorization.

51861175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074457 (or 2074452 counting only the distinct ones).

The product of its digits is 8400, while the sum is 34.

The square root of 51861175 is about 7201.4703359800. The cubic root of 51861175 is about 372.9186620508.

The spelling of 51861175 in words is "fifty-one million, eight hundred sixty-one thousand, one hundred seventy-five".