55463868 has 36 divisors (see below), whose sum is σ = 140573160. Its totient is φ = 18438816.

The previous prime is 55463827. The next prime is 55463893. The reversal of 55463868 is 86836455.

55463868 is a `hidden beast` number, since 5 + 5 + 4 + 638 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13246 + ... + 16922.

It is an arithmetic number, because the mean of its divisors is an integer number (3904810).

Almost surely, 2^55463868 is an apocalyptic number.

It is an amenable number.

55463868 is an abundant number, since it is smaller than the sum of its proper divisors (85109292).

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

55463868 is a wasteful number, since it uses less digits than its factorization.

55463868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106 (or 4101 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 55463868 is about 7447.4067969999. The cubic root of 55463868 is about 381.3613864991.

The spelling of 55463868 in words is "fifty-five million, four hundred sixty-three thousand, eight hundred sixty-eight".