51375028 has 12 divisors (see below), whose sum is σ = 89981892. Its totient is φ = 25665920.

The previous prime is 51375013. The next prime is 51375041. The reversal of 51375028 is 82057315.

It can be written as a sum of positive squares in 2 ways, for example, as 18335524 + 33039504 = 4282^2 + 5748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726 + ... + 10162.

It is an arithmetic number, because the mean of its divisors is an integer number (7498491).

Almost surely, 2^51375028 is an apocalyptic number.

It is an amenable number.

51375028 is a deficient number, since it is larger than the sum of its proper divisors (38606864).

51375028 is a wasteful number, since it uses less digits than its factorization.

51375028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802 (or 10800 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 51375028 is about 7167.6375466398. The cubic root of 51375028 is about 371.7497546168.

The spelling of 51375028 in words is "fifty-one million, three hundred seventy-five thousand, twenty-eight".