55668865 has 8 divisors (see below), whose sum is σ = 76345920. Its totient is φ = 38172912.

The previous prime is 55668859. The next prime is 55668869. The reversal of 55668865 is 56886655.

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

It is a cyclic number.

It is not a de Polignac number, because 55668865 - 2¹¹ = 55666817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55668869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795235 + ... + 795304.

It is an arithmetic number, because the mean of its divisors is an integer number (9543240).

Almost surely, 2^55668865 is an apocalyptic number.

It is an amenable number.

55668865 is a deficient number, since it is larger than the sum of its proper divisors (20677055).

55668865 is a wasteful number, since it uses less digits than its factorization.

55668865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590551.

The product of its digits is 1728000, while the sum is 49.

The square root of 55668865 is about 7461.1570818473. The cubic root of 55668865 is about 381.8306518895.

The spelling of 55668865 in words is "fifty-five million, six hundred sixty-eight thousand, eight hundred sixty-five".