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56249425 = 5210122277
BaseRepresentation
bin1101011010010…
…0110001010001
310220211202201001
43112210301101
5103344440200
65325342001
71252053331
oct326446121
9126752631
1056249425
112982a031
1216a07901
13b865aab
1476830c1
154e1176a
hex35a4c51

56249425 has 12 divisors (see below), whose sum is σ = 70443036. Its totient is φ = 44552000.

The previous prime is 56249411. The next prime is 56249429. The reversal of 56249425 is 52494265.

It can be written as a sum of positive squares in 6 ways, for example, as 6066369 + 50183056 = 2463^2 + 7084^2 .

It is a de Polignac number, because none of the positive numbers 2k-56249425 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56249429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8614 + ... + 13663.

It is an arithmetic number, because the mean of its divisors is an integer number (5870253).

Almost surely, 256249425 is an apocalyptic number.

It is an amenable number.

56249425 is a deficient number, since it is larger than the sum of its proper divisors (14193611).

56249425 is a wasteful number, since it uses less digits than its factorization.

56249425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22388 (or 22383 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 56249425 is about 7499.9616665687. The cubic root of 56249425 is about 383.1534106281.

The spelling of 56249425 in words is "fifty-six million, two hundred forty-nine thousand, four hundred twenty-five".

Divisors: 1 5 25 101 505 2525 22277 111385 556925 2249977 11249885 56249425