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53506 = 231863
BaseRepresentation
bin1101000100000010
32201101201
431010002
53203011
61051414
7311665
oct150402
981351
1053506
1137222
1226b6a
131b47b
14156dc
1510cc1
hexd102

53506 has 8 divisors (see below), whose sum is σ = 82944. Its totient is φ = 25860.

The previous prime is 53503. The next prime is 53507. The reversal of 53506 is 60535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370 + ... + 493.

It is an arithmetic number, because the mean of its divisors is an integer number (10368).

253506 is an apocalyptic number.

53506 is the 124-th nonagonal number.

53506 is a deficient number, since it is larger than the sum of its proper divisors (29438).

53506 is a wasteful number, since it uses less digits than its factorization.

53506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 53506 is about 231.3136398918. The cubic root of 53506 is about 37.6820187852.

Adding to 53506 its product of nonzero digits (450), we get a triangular number (53956 = T328).

It can be divided in two parts, 5350 and 6, that added together give a triangular number (5356 = T103).

The spelling of 53506 in words is "fifty-three thousand, five hundred six".

Divisors: 1 2 31 62 863 1726 26753 53506