51549875 has 16 divisors (see below), whose sum is σ = 69285216. Its totient is φ = 38066400.

The previous prime is 51549863. The next prime is 51549881. The reversal of 51549875 is 57894515.

51549875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51549875 - 2⁴ = 51549859 is a prime.

It is a super-2 number, since 2×51549875² = 5314779225031250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14237 + ... + 17486.

It is an arithmetic number, because the mean of its divisors is an integer number (4330326).

Almost surely, 2^51549875 is an apocalyptic number.

51549875 is a deficient number, since it is larger than the sum of its proper divisors (17735341).

51549875 is a wasteful number, since it uses less digits than its factorization.

51549875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31751 (or 31741 counting only the distinct ones).

The product of its digits is 252000, while the sum is 44.

The square root of 51549875 is about 7179.8241621923. The cubic root of 51549875 is about 372.1710081102.

The spelling of 51549875 in words is "fifty-one million, five hundred forty-nine thousand, eight hundred seventy-five".