51648876 has 18 divisors (see below), whose sum is σ = 130556972. Its totient is φ = 17216280.

The previous prime is 51648853. The next prime is 51648881. The reversal of 51648876 is 67884615.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×51648876³ (a number of 24 digits) contains 333 as substring.

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 5 ways as a sum of consecutive naturals, for example, 717310 + ... + 717381.

Almost surely, 2^51648876 is an apocalyptic number.

It is an amenable number.

51648876 is an abundant number, since it is smaller than the sum of its proper divisors (78908096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51648876 is a wasteful number, since it uses less digits than its factorization.

51648876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434701 (or 1434696 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 51648876 is about 7186.7152441154. The cubic root of 51648876 is about 372.4091059400.

The spelling of 51648876 in words is "fifty-one million, six hundred forty-eight thousand, eight hundred seventy-six".