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56625055 = 511325011
BaseRepresentation
bin1101100000000…
…0011110011111
310221112211222021
43120000132133
5103444000210
65341401011
71255206424
oct330003637
9127484867
1056625055
1129a66273
1216b69167
13b967a66
14773dd4b
154e87bda
hex360079f

56625055 has 4 divisors (see below), whose sum is σ = 67950072. Its totient is φ = 45300040.

The previous prime is 56625053. The next prime is 56625077. The reversal of 56625055 is 55052665.

It is a happy number.

56625055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55052665 = 511010533.

It is not a de Polignac number, because 56625055 - 21 = 56625053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56625055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56625053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5662501 + ... + 5662510.

It is an arithmetic number, because the mean of its divisors is an integer number (16987518).

Almost surely, 256625055 is an apocalyptic number.

56625055 is a deficient number, since it is larger than the sum of its proper divisors (11325017).

56625055 is a wasteful number, since it uses less digits than its factorization.

56625055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11325016.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 56625055 is about 7524.9621261505. The cubic root of 56625055 is about 384.0044103045.

The spelling of 56625055 in words is "fifty-six million, six hundred twenty-five thousand, fifty-five".

Divisors: 1 5 11325011 56625055