51395228 has 12 divisors (see below), whose sum is σ = 94675560. Its totient is φ = 24345072.

The previous prime is 51395207. The next prime is 51395243. The reversal of 51395228 is 82259315.

It is a super-2 number, since 2×51395228² = 5282938922343968, which contains 22 as substring.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 338051 + ... + 338202.

It is an arithmetic number, because the mean of its divisors is an integer number (7889630).

Almost surely, 2^51395228 is an apocalyptic number.

It is an amenable number.

51395228 is a deficient number, since it is larger than the sum of its proper divisors (43280332).

51395228 is a wasteful number, since it uses less digits than its factorization.

51395228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676276 (or 676274 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 51395228 is about 7169.0465195868. The cubic root of 51395228 is about 371.7984706394.

The spelling of 51395228 in words is "fifty-one million, three hundred ninety-five thousand, two hundred twenty-eight".