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56526131 = 229246839
BaseRepresentation
bin1101011110100…
…0010100110011
310221100211021102
43113220110303
5103432314011
65335315015
71254315134
oct327502463
9127324242
1056526131
11299a8a12
1216b1ba6b
13b931a1c
147715c8b
154e6873b
hex35e8533

56526131 has 4 divisors (see below), whose sum is σ = 56773200. Its totient is φ = 56279064.

The previous prime is 56526097. The next prime is 56526179. The reversal of 56526131 is 13162565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56526131 - 210 = 56525107 is a prime.

It is a super-2 number, since 2×565261312 = 6390406971658322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56526094 and 56526103.

It is not an unprimeable number, because it can be changed into a prime (56526731) 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, 123191 + ... + 123648.

It is an arithmetic number, because the mean of its divisors is an integer number (14193300).

Almost surely, 256526131 is an apocalyptic number.

56526131 is a deficient number, since it is larger than the sum of its proper divisors (247069).

56526131 is a wasteful number, since it uses less digits than its factorization.

56526131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247068.

The product of its digits is 5400, while the sum is 29.

The square root of 56526131 is about 7518.3861965185. The cubic root of 56526131 is about 383.7806613237.

Adding to 56526131 its reverse (13162565), we get a palindrome (69688696).

The spelling of 56526131 in words is "fifty-six million, five hundred twenty-six thousand, one hundred thirty-one".

Divisors: 1 229 246839 56526131