55660446 has 20 divisors (see below), whose sum is σ = 124720992. Its totient is φ = 18553428.

The previous prime is 55660439. The next prime is 55660463. The reversal of 55660446 is 64406655.

It is a happy number.

55660446 is a `hidden beast` number, since 5 + 5 + 6 + 604 + 46 = 666.

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 55660446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 171630 + ... + 171953.

Almost surely, 2^55660446 is an apocalyptic number.

55660446 is an abundant number, since it is smaller than the sum of its proper divisors (69060546).

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

55660446 is a wasteful number, since it uses less digits than its factorization.

55660446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343597 (or 343588 counting only the distinct ones).

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

The square root of 55660446 is about 7460.5928718836. The cubic root of 55660446 is about 381.8114023843.

The spelling of 55660446 in words is "fifty-five million, six hundred sixty thousand, four hundred forty-six".