51995276 has 6 divisors (see below), whose sum is σ = 90991740. Its totient is φ = 25997636.

The previous prime is 51995269. The next prime is 51995297. The reversal of 51995276 is 67259915.

It is a happy 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 as a sum of consecutive naturals, namely, 6499406 + ... + 6499413.

It is an arithmetic number, because the mean of its divisors is an integer number (15165290).

Almost surely, 2^51995276 is an apocalyptic number.

It is an amenable number.

51995276 is a deficient number, since it is larger than the sum of its proper divisors (38996464).

51995276 is a wasteful number, since it uses less digits than its factorization.

51995276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12998823 (or 12998821 counting only the distinct ones).

The product of its digits is 170100, while the sum is 44.

The square root of 51995276 is about 7210.7749930226. The cubic root of 51995276 is about 373.2398125300.

The spelling of 51995276 in words is "fifty-one million, nine hundred ninety-five thousand, two hundred seventy-six".