55646154 has 48 divisors (see below), whose sum is σ = 126539712. Its totient is φ = 17639424.

The previous prime is 55646153. The next prime is 55646183. The reversal of 55646154 is 45164655.

55646154 is a `hidden beast` number, since 5 + 5 + 646 + 1 + 5 + 4 = 666.

55646154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55646153) 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 23 ways as a sum of consecutive naturals, for example, 106137 + ... + 106659.

It is an arithmetic number, because the mean of its divisors is an integer number (2636244).

Almost surely, 2^55646154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55646154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63269856).

55646154 is an abundant number, since it is smaller than the sum of its proper divisors (70893558).

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

55646154 is a wasteful number, since it uses less digits than its factorization.

55646154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 808 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 55646154 is about 7459.6349776648. The cubic root of 55646154 is about 381.7787201951.

The spelling of 55646154 in words is "fifty-five million, six hundred forty-six thousand, one hundred fifty-four".