51825871 has 8 divisors (see below), whose sum is σ = 53733600. Its totient is φ = 49926240.

The previous prime is 51825853. The next prime is 51825883. The reversal of 51825871 is 17852815.

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

It is a cyclic number.

It is not a de Polignac number, because 51825871 - 2⁷ = 51825743 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 51825871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51825821) 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, 13006 + ... + 16516.

It is an arithmetic number, because the mean of its divisors is an integer number (6716700).

Almost surely, 2^51825871 is an apocalyptic number.

51825871 is a deficient number, since it is larger than the sum of its proper divisors (1907729).

51825871 is a wasteful number, since it uses less digits than its factorization.

51825871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049.

The product of its digits is 22400, while the sum is 37.

The square root of 51825871 is about 7199.0187525801. The cubic root of 51825871 is about 372.8340225685.

The spelling of 51825871 in words is "fifty-one million, eight hundred twenty-five thousand, eight hundred seventy-one".