56636040 has 64 divisors (see below), whose sum is σ = 171849600. Its totient is φ = 14930432.

The previous prime is 56636033. The next prime is 56636057. The reversal of 56636040 is 4063665.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 56635989 and 56636007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8029 + ... + 13331.

It is an arithmetic number, because the mean of its divisors is an integer number (2685150).

Almost surely, 2^56636040 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 56636040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85924800).

56636040 is an abundant number, since it is smaller than the sum of its proper divisors (115213560).

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

56636040 is a wasteful number, since it uses less digits than its factorization.

56636040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5406 (or 5402 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 56636040 is about 7525.6919947603. The cubic root of 56636040 is about 384.0292403949.

The spelling of 56636040 in words is "fifty-six million, six hundred thirty-six thousand, forty".