55710644 has 24 divisors (see below), whose sum is σ = 107133600. Its totient is φ = 25138080.

The previous prime is 55710643. The next prime is 55710667. The reversal of 55710644 is 44601755.

It is a self number, because there is not a number n which added to its sum of digits gives 55710644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55710643) 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, 1562 + ... + 10670.

It is an arithmetic number, because the mean of its divisors is an integer number (4463900).

Almost surely, 2^55710644 is an apocalyptic number.

It is an amenable number.

55710644 is a deficient number, since it is larger than the sum of its proper divisors (51422956).

55710644 is a wasteful number, since it uses less digits than its factorization.

55710644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9263 (or 9261 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 55710644 is about 7463.9563235592. The cubic root of 55710644 is about 381.9261482005.

Subtracting from 55710644 its reverse (44601755), we obtain a square (11108889 = 3333²).

The spelling of 55710644 in words is "fifty-five million, seven hundred ten thousand, six hundred forty-four".