56209776 has 80 divisors (see below), whose sum is σ = 167084544. Its totient is φ = 15950592.

The previous prime is 56209763. The next prime is 56209787. The reversal of 56209776 is 67790265.

It is a happy number.

56209776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57645 + ... + 58611.

Almost surely, 2^56209776 is an apocalyptic number.

56209776 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 56209776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83542272).

56209776 is an abundant number, since it is smaller than the sum of its proper divisors (110874768).

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

56209776 is a wasteful number, since it uses less digits than its factorization.

56209776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 56209776 is about 7497.3179204299. The cubic root of 56209776 is about 383.0633639571.

The spelling of 56209776 in words is "fifty-six million, two hundred nine thousand, seven hundred seventy-six".