56680146 has 12 divisors (see below), whose sum is σ = 122807022. Its totient is φ = 18893376.

The previous prime is 56680139. The next prime is 56680157. The reversal of 56680146 is 64108665.

56680146 is a `hidden beast` number, since 566 + 80 + 14 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50253921 + 6426225 = 7089^2 + 2535^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56680146.

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, 1574431 + ... + 1574466.

Almost surely, 2^56680146 is an apocalyptic number.

56680146 is an abundant number, since it is smaller than the sum of its proper divisors (66126876).

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

56680146 is a wasteful number, since it uses less digits than its factorization.

56680146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148905 (or 3148902 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 56680146 is about 7528.6217862236. The cubic root of 56680146 is about 384.1289036640.

The spelling of 56680146 in words is "fifty-six million, six hundred eighty thousand, one hundred forty-six".