51016799 has 4 divisors (see below), whose sum is σ = 51035736. Its totient is φ = 50997864.

The previous prime is 51016787. The next prime is 51016831. The reversal of 51016799 is 99761015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51016799 - 2⁸ = 51016543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51016759) 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, 4589 + ... + 11094.

It is an arithmetic number, because the mean of its divisors is an integer number (12758934).

Almost surely, 2^51016799 is an apocalyptic number.

51016799 is a deficient number, since it is larger than the sum of its proper divisors (18937).

51016799 is a wasteful number, since it uses less digits than its factorization.

51016799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18936.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 51016799 is about 7142.6044969605. The cubic root of 51016799 is about 370.8836900461.

It can be divided in two parts, 51016 and 799, that added together give a palindrome (51815).

The spelling of 51016799 in words is "fifty-one million, sixteen thousand, seven hundred ninety-nine".