51676416 has 108 divisors (see below), whose sum is σ = 162620640. Its totient is φ = 15651840.

The previous prime is 51676403. The next prime is 51676433. The reversal of 51676416 is 61467615.

51676416 is a `hidden beast` number, since 5 + 1 + 6 + 7 + 641 + 6 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24325 + ... + 26363.

Almost surely, 2^51676416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51676416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81310320).

51676416 is an abundant number, since it is smaller than the sum of its proper divisors (110944224).

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

51676416 is a wasteful number, since it uses less digits than its factorization.

51676416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072 (or 2055 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 51676416 is about 7188.6310240546. The cubic root of 51676416 is about 372.4752856597.

The spelling of 51676416 in words is "fifty-one million, six hundred seventy-six thousand, four hundred sixteen".