51782696 has 64 divisors (see below), whose sum is σ = 115084800. Its totient is φ = 21385728.

The previous prime is 51782693. The next prime is 51782699. The reversal of 51782696 is 69628715.

It is an interprime number because it is at equal distance from previous prime (51782693) and next prime (51782699).

Its product of digits (181440) is a multiple of the sum of its prime factors (378).

It is not an unprimeable number, because it can be changed into a prime (51782693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216545 + ... + 216783.

It is an arithmetic number, because the mean of its divisors is an integer number (1798200).

Almost surely, 2^51782696 is an apocalyptic number.

51782696 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51782696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57542400).

51782696 is an abundant number, since it is smaller than the sum of its proper divisors (63302104).

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

51782696 is a wasteful number, since it uses less digits than its factorization.

51782696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 374 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 51782696 is about 7196.0194552266. The cubic root of 51782696 is about 372.7304605139.

The spelling of 51782696 in words is "fifty-one million, seven hundred eighty-two thousand, six hundred ninety-six".