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25056628 = 2217336209
BaseRepresentation
bin101111110010…
…1010101110100
31202011000020021
41133211111310
522403303003
62253014524
7422656252
oct137452564
952130207
1025056628
1113164463
128484444
135263c0c
1434835d2
1522ee2bd
hex17e5574

25056628 has 12 divisors (see below), whose sum is σ = 44103780. Its totient is φ = 12455552.

The previous prime is 25056613. The next prime is 25056653. The reversal of 25056628 is 82665052.

It can be written as a sum of positive squares in 2 ways, for example, as 14047504 + 11009124 = 3748^2 + 3318^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25056593 and 25056602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17413 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (3675315).

Almost surely, 225056628 is an apocalyptic number.

It is an amenable number.

25056628 is a deficient number, since it is larger than the sum of its proper divisors (19047152).

25056628 is a wasteful number, since it uses less digits than its factorization.

25056628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36386 (or 36384 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 25056628 is about 5005.6595968963. The cubic root of 25056628 is about 292.6223823721.

The spelling of 25056628 in words is "twenty-five million, fifty-six thousand, six hundred twenty-eight".

Divisors: 1 2 4 173 346 692 36209 72418 144836 6264157 12528314 25056628