51028125 has 24 divisors (see below), whose sum is σ = 85057056. Its totient is φ = 27210000.

The previous prime is 51028079. The next prime is 51028127. The reversal of 51028125 is 52182015.

It is not a de Polignac number, because 51028125 - 2¹³ = 51019933 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51028095 and 51028104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51028127) 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 23 ways as a sum of consecutive naturals, for example, 6654 + ... + 12096.

It is an arithmetic number, because the mean of its divisors is an integer number (3544044).

Almost surely, 2^51028125 is an apocalyptic number.

It is an amenable number.

51028125 is a deficient number, since it is larger than the sum of its proper divisors (34028931).

51028125 is an frugal number, since it uses more digits than its factorization.

51028125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471 (or 5451 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 51028125 is about 7143.3973010046. The cubic root of 51028125 is about 370.9111340641.

The spelling of 51028125 in words is "fifty-one million, twenty-eight thousand, one hundred twenty-five".