56645226 has 48 divisors (see below), whose sum is σ = 135757440. Its totient is φ = 16925760.

The previous prime is 56645219. The next prime is 56645249. The reversal of 56645226 is 62254665.

56645226 is a `hidden beast` number, since 5 + 6 + 645 + 2 + 2 + 6 = 666.

It is a Curzon 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, 12495 + ... + 16413.

It is an arithmetic number, because the mean of its divisors is an integer number (2828280).

Almost surely, 2^56645226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56645226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67878720).

56645226 is an abundant number, since it is smaller than the sum of its proper divisors (79112214).

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

56645226 is a wasteful number, since it uses less digits than its factorization.

56645226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011 (or 4008 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 56645226 is about 7526.3022793401. The cubic root of 56645226 is about 384.0500016269.

The spelling of 56645226 in words is "fifty-six million, six hundred forty-five thousand, two hundred twenty-six".