51012125 has 16 divisors (see below), whose sum is σ = 64623936. Its totient is φ = 40194000.

The previous prime is 51012119. The next prime is 51012127. The reversal of 51012125 is 52121015.

It is not a de Polignac number, because 51012125 - 2⁸ = 51011869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51012127) 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, 5330 + ... + 11420.

It is an arithmetic number, because the mean of its divisors is an integer number (4038996).

Almost surely, 2^51012125 is an apocalyptic number.

It is an amenable number.

51012125 is a deficient number, since it is larger than the sum of its proper divisors (13611811).

51012125 is an equidigital number, since it uses as much as digits as its factorization.

51012125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6173 (or 6163 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 51012125 is about 7142.2772978932. The cubic root of 51012125 is about 370.8723632979.

The spelling of 51012125 in words is "fifty-one million, twelve thousand, one hundred twenty-five".