55668454 has 4 divisors (see below), whose sum is σ = 83502684. Its totient is φ = 27834226.

The previous prime is 55668427. The next prime is 55668469. The reversal of 55668454 is 45486655.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 55668454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13917112 + ... + 13917115.

It is an arithmetic number, because the mean of its divisors is an integer number (20875671).

Almost surely, 2^55668454 is an apocalyptic number.

55668454 is a deficient number, since it is larger than the sum of its proper divisors (27834230).

55668454 is a wasteful number, since it uses less digits than its factorization.

55668454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27834229.

The product of its digits is 576000, while the sum is 43.

The square root of 55668454 is about 7461.1295391516. The cubic root of 55668454 is about 381.8297122093.

The spelling of 55668454 in words is "fifty-five million, six hundred sixty-eight thousand, four hundred fifty-four".