55731344 has 10 divisors (see below), whose sum is σ = 107979510. Its totient is φ = 27865664.

The previous prime is 55731307. The next prime is 55731371. The reversal of 55731344 is 44313755.

It can be written as a sum of positive squares in only one way, i.e., 44089600 + 11641744 = 6640^2 + 3412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55731344.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1741589 + ... + 1741620.

It is an arithmetic number, because the mean of its divisors is an integer number (10797951).

Almost surely, 2^55731344 is an apocalyptic number.

It is an amenable number.

55731344 is a deficient number, since it is larger than the sum of its proper divisors (52248166).

55731344 is a wasteful number, since it uses less digits than its factorization.

55731344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483217 (or 3483211 counting only the distinct ones).

The product of its digits is 25200, while the sum is 32.

The square root of 55731344 is about 7465.3428588378. The cubic root of 55731344 is about 381.9734455194.

The spelling of 55731344 in words is "fifty-five million, seven hundred thirty-one thousand, three hundred forty-four".