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56509075 = 5271372357
BaseRepresentation
bin1101011110010…
…0001010010011
310221022221212201
43113210022103
5103431242300
65335104031
71254214330
oct327441223
9127287781
1056509075
1129997117
1216b12017
13b92702c
14770d987
154e6366a
hex35e4293

56509075 has 24 divisors (see below), whose sum is σ = 80700192. Its totient is φ = 38449920.

The previous prime is 56509051. The next prime is 56509147. The reversal of 56509075 is 57090565.

56509075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56509075 - 25 = 56509043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22797 + ... + 25153.

It is an arithmetic number, because the mean of its divisors is an integer number (3362508).

Almost surely, 256509075 is an apocalyptic number.

56509075 is a deficient number, since it is larger than the sum of its proper divisors (24191117).

56509075 is a wasteful number, since it uses less digits than its factorization.

56509075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2506 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 37.

The square root of 56509075 is about 7517.2518249690. The cubic root of 56509075 is about 383.7420572226.

The spelling of 56509075 in words is "fifty-six million, five hundred nine thousand, seventy-five".

Divisors: 1 5 7 25 35 137 175 685 959 2357 3425 4795 11785 16499 23975 58925 82495 322909 412475 1614545 2260363 8072725 11301815 56509075