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BaseRepresentation
bin1101110010111010
32212111211
431302322
53302011
61113334
7323512
oct156272
985454
1056506
11394aa
122884a
131c948
1416842
1511b21
hexdcba

56506 has 8 divisors (see below), whose sum is σ = 89280. Its totient is φ = 26748.

The previous prime is 56503. The next prime is 56509. The reversal of 56506 is 60565.

56506 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (56503) and next prime (56509).

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

It is a plaindrome in base 6.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (56501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706 + ... + 781.

It is an arithmetic number, because the mean of its divisors is an integer number (11160).

256506 is an apocalyptic number.

56506 is a deficient number, since it is larger than the sum of its proper divisors (32774).

56506 is a wasteful number, since it uses less digits than its factorization.

56506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 56506 is about 237.7099072399. The cubic root of 56506 is about 38.3735096522.

The spelling of 56506 in words is "fifty-six thousand, five hundred six".

Divisors: 1 2 19 38 1487 2974 28253 56506