55646460 has 48 divisors (see below), whose sum is σ = 173124000. Its totient is φ = 14838912.

The previous prime is 55646443. The next prime is 55646467. The reversal of 55646460 is 6464655.

It is a happy number.

55646460 is a `hidden beast` number, since 5 + 5 + 6 + 4 + 646 + 0 = 666.

55646460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55646467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50985 + ... + 52064.

It is an arithmetic number, because the mean of its divisors is an integer number (3606750).

Almost surely, 2^55646460 is an apocalyptic number.

It is an amenable number.

55646460 is an abundant number, since it is smaller than the sum of its proper divisors (117477540).

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

55646460 is a wasteful number, since it uses less digits than its factorization.

55646460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103067 (or 103059 counting only the distinct ones).

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

The square root of 55646460 is about 7459.6554880236. The cubic root of 55646460 is about 381.7794199983.

It can be divided in two parts, 5 and 5646460, that added together give a palindrome (5646465).

The spelling of 55646460 in words is "fifty-five million, six hundred forty-six thousand, four hundred sixty".