56289216 has 28 divisors (see below), whose sum is σ = 148932392. Its totient is φ = 18763008.

The previous prime is 56289209. The next prime is 56289217. The reversal of 56289216 is 61298265.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56289217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146395 + ... + 146778.

It is an arithmetic number, because the mean of its divisors is an integer number (5319014).

Almost surely, 2^56289216 is an apocalyptic number.

It is an amenable number.

56289216 is an abundant number, since it is smaller than the sum of its proper divisors (92643176).

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

56289216 is a wasteful number, since it uses less digits than its factorization.

56289216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293188 (or 293178 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 56289216 is about 7502.6139444863. The cubic root of 56289216 is about 383.2437372625.

The spelling of 56289216 in words is "fifty-six million, two hundred eighty-nine thousand, two hundred sixteen".