55510644 has 48 divisors (see below), whose sum is σ = 156739968. Its totient is φ = 14926848.

The previous prime is 55510643. The next prime is 55510657. The reversal of 55510644 is 44601555.

55510644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×55510644³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510643) 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, 18009 + ... + 20864.

It is an arithmetic number, because the mean of its divisors is an integer number (3265416).

Almost surely, 2^55510644 is an apocalyptic number.

It is an amenable number.

55510644 is an abundant number, since it is smaller than the sum of its proper divisors (101229324).

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

55510644 is a wasteful number, since it uses less digits than its factorization.

55510644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38904 (or 38902 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55510644 is about 7450.5465571326. The cubic root of 55510644 is about 381.4685646701.

The spelling of 55510644 in words is "fifty-five million, five hundred ten thousand, six hundred forty-four".