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55724 = 2213931
BaseRepresentation
bin1101100110101100
32211102212
431212230
53240344
61105552
7321314
oct154654
984385
1055724
1138959
12282b8
131c496
1416444
151179e
hexd9ac

55724 has 6 divisors (see below), whose sum is σ = 97524. Its totient is φ = 27860.

The previous prime is 55721. The next prime is 55733. The reversal of 55724 is 42755.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 55724.

It is not an unprimeable number, because it can be changed into a prime (55721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6962 + ... + 6969.

It is an arithmetic number, because the mean of its divisors is an integer number (16254).

255724 is an apocalyptic number.

It is an amenable number.

55724 is a deficient number, since it is larger than the sum of its proper divisors (41800).

55724 is a wasteful number, since it uses less digits than its factorization.

55724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13935 (or 13933 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 55724 is about 236.0593145800. The cubic root of 55724 is about 38.1956666594.

The spelling of 55724 in words is "fifty-five thousand, seven hundred twenty-four".

Divisors: 1 2 4 13931 27862 55724