55664894 has 8 divisors (see below), whose sum is σ = 83529048. Its totient is φ = 27821880.

The previous prime is 55664831. The next prime is 55664897. The reversal of 55664894 is 49846655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55664897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7184 + ... + 12764.

It is an arithmetic number, because the mean of its divisors is an integer number (10441131).

Almost surely, 2^55664894 is an apocalyptic number.

55664894 is a deficient number, since it is larger than the sum of its proper divisors (27864154).

55664894 is a wasteful number, since it uses less digits than its factorization.

55664894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10570.

The product of its digits is 1036800, while the sum is 47.

The square root of 55664894 is about 7460.8909655617. The cubic root of 55664894 is about 381.8215726937.

The spelling of 55664894 in words is "fifty-five million, six hundred sixty-four thousand, eight hundred ninety-four".