56748636 has 72 divisors (see below), whose sum is σ = 171085824. Its totient is φ = 15507360.

The previous prime is 56748617. The next prime is 56748641. The reversal of 56748636 is 63684765.

56748636 is a `hidden beast` number, since 5 + 6 + 7 + 4 + 8 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 56748591 and 56748600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 901 + ... + 10691.

It is an arithmetic number, because the mean of its divisors is an integer number (2376192).

Almost surely, 2^56748636 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 56748636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85542912).

56748636 is an abundant number, since it is smaller than the sum of its proper divisors (114337188).

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

56748636 is a wasteful number, since it uses less digits than its factorization.

56748636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831 (or 9826 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 56748636 is about 7533.1690542560. The cubic root of 56748636 is about 384.2835633386.

The spelling of 56748636 in words is "fifty-six million, seven hundred forty-eight thousand, six hundred thirty-six".