56209120 has 96 divisors (see below), whose sum is σ = 146694240. Its totient is φ = 20183040.

The previous prime is 56209103. The next prime is 56209129. The reversal of 56209120 is 2190265.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56209129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191694 + ... + 191986.

It is an arithmetic number, because the mean of its divisors is an integer number (1528065).

Almost surely, 2^56209120 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 56209120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73347120).

56209120 is an abundant number, since it is smaller than the sum of its proper divisors (90485120).

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

56209120 is a wasteful number, since it uses less digits than its factorization.

56209120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 56209120 is about 7497.2741713239. The cubic root of 56209120 is about 383.0618737623.

Adding to 56209120 its reverse (2190265), we get a palindrome (58399385).

The spelling of 56209120 in words is "fifty-six million, two hundred nine thousand, one hundred twenty".