51016884 has 12 divisors (see below), whose sum is σ = 119039424. Its totient is φ = 17005624.

The previous prime is 51016883. The next prime is 51016891. The reversal of 51016884 is 48861015.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51016883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125692 + ... + 2125715.

It is an arithmetic number, because the mean of its divisors is an integer number (9919952).

Almost surely, 2^51016884 is an apocalyptic number.

It is an amenable number.

51016884 is an abundant number, since it is smaller than the sum of its proper divisors (68022540).

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

51016884 is a wasteful number, since it uses less digits than its factorization.

51016884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251414 (or 4251412 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 51016884 is about 7142.6104471685. The cubic root of 51016884 is about 370.8838960246.

Adding to 51016884 its reverse (48861015), we get a palindrome (99877899).

The spelling of 51016884 in words is "fifty-one million, sixteen thousand, eight hundred eighty-four".