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56256925 = 527612957
BaseRepresentation
bin1101011010011…
…0100110011101
310220212010222211
43112212212131
5103400210200
65325440421
71252114234
oct326464635
9126763884
1056256925
112983472a
1216a10111
13b86932a
147685b1b
154e13aba
hex35a699d

56256925 has 12 divisors (see below), whose sum is σ = 69873876. Its totient is φ = 44931200.

The previous prime is 56256911. The next prime is 56256931. The reversal of 56256925 is 52965265.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 22174681 + 34082244 = 4709^2 + 5838^2 .

It is a de Polignac number, because none of the positive numbers 2k-56256925 is a prime.

It is a super-2 number, since 2×562569252 = 6329683220911250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17547 + ... + 20503.

It is an arithmetic number, because the mean of its divisors is an integer number (5822823).

Almost surely, 256256925 is an apocalyptic number.

It is an amenable number.

56256925 is a deficient number, since it is larger than the sum of its proper divisors (13616951).

56256925 is a wasteful number, since it uses less digits than its factorization.

56256925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3723 counting only the distinct ones).

The product of its digits is 162000, while the sum is 40.

The square root of 56256925 is about 7500.4616524585. The cubic root of 56256925 is about 383.1704390859.

The spelling of 56256925 in words is "fifty-six million, two hundred fifty-six thousand, nine hundred twenty-five".

Divisors: 1 5 25 761 2957 3805 14785 19025 73925 2250277 11251385 56256925