56636437242 has 192 divisors, whose sum is σ = 151627368960. Its totient is φ = 13907376000.

The previous prime is 56636437201. The next prime is 56636437259. The reversal of 56636437242 is 24273463665.

It is a junction number, because it is equal to n+sod(n) for n = 56636437191 and 56636437200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53887617 + ... + 53888667.

It is an arithmetic number, because the mean of its divisors is an integer number (789725880).

Almost surely, 2^56636437242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56636437242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75813684480).

56636437242 is an abundant number, since it is smaller than the sum of its proper divisors (94990931718).

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

56636437242 is a wasteful number, since it uses less digits than its factorization.

56636437242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1970 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 48.

The spelling of 56636437242 in words is "fifty-six billion, six hundred thirty-six million, four hundred thirty-seven thousand, two hundred forty-two".