51175125 has 64 divisors (see below), whose sum is σ = 96595200. Its totient is φ = 26726400.

The previous prime is 51175123. The next prime is 51175127. The reversal of 51175125 is 52157115.

It is an interprime number because it is at equal distance from previous prime (51175123) and next prime (51175127).

It is not a de Polignac number, because 51175125 - 2¹ = 51175123 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 (51175121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 198997 + ... + 199253.

It is an arithmetic number, because the mean of its divisors is an integer number (1509300).

Almost surely, 2^51175125 is an apocalyptic number.

It is an amenable number.

51175125 is a deficient number, since it is larger than the sum of its proper divisors (45420075).

51175125 is a wasteful number, since it uses less digits than its factorization.

51175125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 324 counting only the distinct ones).

The product of its digits is 1750, while the sum is 27.

The square root of 51175125 is about 7153.6791233602. The cubic root of 51175125 is about 371.2669617799.

The spelling of 51175125 in words is "fifty-one million, one hundred seventy-five thousand, one hundred twenty-five".