55386744 has 32 divisors (see below), whose sum is σ = 158248320. Its totient is φ = 15824736.

The previous prime is 55386713. The next prime is 55386757. The reversal of 55386744 is 44768355.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 55386696 and 55386705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164674 + ... + 165009.

It is an arithmetic number, because the mean of its divisors is an integer number (4945260).

Almost surely, 2^55386744 is an apocalyptic number.

It is an amenable number.

55386744 is an abundant number, since it is smaller than the sum of its proper divisors (102861576).

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

55386744 is a wasteful number, since it uses less digits than its factorization.

55386744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329699 (or 329695 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 55386744 is about 7442.2270860274. The cubic root of 55386744 is about 381.1845400826.

The spelling of 55386744 in words is "fifty-five million, three hundred eighty-six thousand, seven hundred forty-four".