51516792 has 48 divisors (see below), whose sum is σ = 144031680. Its totient is φ = 16617600.

The previous prime is 51516781. The next prime is 51516793. The reversal of 51516792 is 29761515.

51516792 is a `hidden beast` number, since 51 + 516 + 7 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51516793) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9309 + ... + 13772.

It is an arithmetic number, because the mean of its divisors is an integer number (3000660).

Almost surely, 2^51516792 is an apocalyptic number.

It is an amenable number.

51516792 is an abundant number, since it is smaller than the sum of its proper divisors (92514888).

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

51516792 is a wasteful number, since it uses less digits than its factorization.

51516792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23124 (or 23117 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 51516792 is about 7177.5199059285. The cubic root of 51516792 is about 372.0913754028.

The spelling of 51516792 in words is "fifty-one million, five hundred sixteen thousand, seven hundred ninety-two".