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56522505 = 3513289859
BaseRepresentation
bin1101011110011…
…1011100001001
310221100122022010
43113213130021
5103432210010
65335250133
71254301434
oct327473411
9127318263
1056522505
11299a6216
1216b19949
13b930190
14771481b
154e67620
hex35e7709

56522505 has 16 divisors (see below), whose sum is σ = 97392960. Its totient is φ = 27826368.

The previous prime is 56522497. The next prime is 56522509. The reversal of 56522505 is 50522565.

It is not a de Polignac number, because 56522505 - 23 = 56522497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56522509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144735 + ... + 145124.

It is an arithmetic number, because the mean of its divisors is an integer number (6087060).

Almost surely, 256522505 is an apocalyptic number.

It is an amenable number.

56522505 is a deficient number, since it is larger than the sum of its proper divisors (40870455).

56522505 is a wasteful number, since it uses less digits than its factorization.

56522505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289880.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 56522505 is about 7518.1450504762. The cubic root of 56522505 is about 383.7724549809.

The spelling of 56522505 in words is "fifty-six million, five hundred twenty-two thousand, five hundred five".

Divisors: 1 3 5 13 15 39 65 195 289859 869577 1449295 3768167 4347885 11304501 18840835 56522505