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56148025 = 5217132113
BaseRepresentation
bin1101011000110…
…0000000111001
310220122121121111
43112030000321
5103333214100
65323240321
71251151603
oct326140071
9126577544
1056148025
112976a92a
12169790a1
13b82b8ab
147658173
154de16ba
hex358c039

56148025 has 12 divisors (see below), whose sum is σ = 73719612. Its totient is φ = 42275840.

The previous prime is 56148013. The next prime is 56148047. The reversal of 56148025 is 52084165.

It can be written as a sum of positive squares in 6 ways, for example, as 1447209 + 54700816 = 1203^2 + 7396^2 .

It is not a de Polignac number, because 56148025 - 213 = 56139833 is a prime.

It is a super-2 number, since 2×561480252 = 6305201422801250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65632 + ... + 66481.

It is an arithmetic number, because the mean of its divisors is an integer number (6143301).

Almost surely, 256148025 is an apocalyptic number.

It is an amenable number.

56148025 is a deficient number, since it is larger than the sum of its proper divisors (17571587).

56148025 is a wasteful number, since it uses less digits than its factorization.

56148025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132140 (or 132135 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 56148025 is about 7493.1985827149. The cubic root of 56148025 is about 382.9230371616.

The spelling of 56148025 in words is "fifty-six million, one hundred forty-eight thousand, twenty-five".

Divisors: 1 5 17 25 85 425 132113 660565 2245921 3302825 11229605 56148025