56398266 has 12 divisors (see below), whose sum is σ = 122196282. Its totient is φ = 18799416.

The previous prime is 56398259. The next prime is 56398283. The reversal of 56398266 is 66289365.

It is a happy number.

56398266 is a `hidden beast` number, since 5 + 639 + 8 + 2 + 6 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41024025 + 15374241 = 6405^2 + 3921^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1566601 + ... + 1566636.

Almost surely, 2^56398266 is an apocalyptic number.

56398266 is an abundant number, since it is smaller than the sum of its proper divisors (65798016).

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

56398266 is a wasteful number, since it uses less digits than its factorization.

56398266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133245 (or 3133242 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 56398266 is about 7509.8778951458. The cubic root of 56398266 is about 383.4910656909.

The spelling of 56398266 in words is "fifty-six million, three hundred ninety-eight thousand, two hundred sixty-six".