61382656 has 56 divisors (see below), whose sum is σ = 125821440. Its totient is φ = 29933568.

The previous prime is 61382641. The next prime is 61382663. The reversal of 61382656 is 65628316.

It is a super-2 number, since 2×61382656² = 7535660915228672, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 483265 + ... + 483391.

Almost surely, 2^61382656 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 61382656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62910720).

61382656 is an abundant number, since it is smaller than the sum of its proper divisors (64438784).

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

61382656 is an equidigital number, since it uses as much as digits as its factorization.

61382656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 188 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 61382656 is about 7834.7084183140. The cubic root of 61382656 is about 394.4711311237.

The spelling of 61382656 in words is "sixty-one million, three hundred eighty-two thousand, six hundred fifty-six".